Perhaps you should try some spelling variations:
"huong trinh hoi nhap." » "phuong trinh hoi nhap." (Expand Search), "vuong trinh hoi nhap." (Expand Search), "huong tinh hoi nhap." (Expand Search), "huong trinh mon nhap." (Expand Search), "huong trinh do nhap." (Expand Search)
"huong trinh thuc dan." » "phuong trinh thuc dan." (Expand Search), "vuong trinh thuc dan." (Expand Search), "huong tinh thuc dan." (Expand Search), "huong trinh thu dan." (Expand Search), "huong trinh tham dan." (Expand Search), "huong trinh thi dan." (Expand Search), "huong trinh thuc hanh." (Expand Search)
"chuong trinh han dan." » "cphuong trinh han dan." (Expand Search), "cvuong trinh han dan." (Expand Search), "chuong tinh han dan." (Expand Search), "chuong trinh phan dan." (Expand Search), "chuong trinh thanh dan." (Expand Search), "chuong trinh danh dan." (Expand Search), "chuong trinh nhan dan." (Expand Search), "chuong trinh van dan." (Expand Search), "chuong trinh han van." (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("huong trinh hoi nhap.") OR ((("huong trinh thuc dan.") OR ("chuong trinh han dan."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"huong trinh hoi nhap.\") OR (((\"huong trinh thuc dan.\") OR (\"chuong trinh han dan.\"))))".
• Removing quotes may allow a broader search: (( huong trinh hoi nhap. ) OR ((( huong trinh thuc dan. ) OR ( chuong trinh han dan. )))).
• Adding a wildcard symbol may retrieve word variants: (("huong trinh hoi nhap.") OR ((("huong trinh thuc dan.") OR ("chuong trinh han dan."))))*.