Perhaps you should try some spelling variations:
"vuong trinh hoi nhap." » "chuong trinh hoi nhap." (Expand Search), "cong trinh hoi nhap." (Expand Search), "vuong trieu hoi nhap." (Expand Search), "vuong trinh mon nhap." (Expand Search), "vuong trinh do nhap." (Expand Search)
"chung trinh so phan." » "chuong trinh so phan." (Expand Search), "khung trinh so phan." (Expand Search), "chung tinh so phan." (Expand Search), "chung trinh do phan." (Expand Search), "chung trinh co phan." (Expand Search), "chung trinh mon phan." (Expand Search), "chung trinh gop phan." (Expand Search)
"chung trinh danh nhan." » "chuong trinh danh nhan." (Expand Search), "khung trinh danh nhan." (Expand Search), "chung tinh danh nhan." (Expand Search), "chung trinh dung nhan." (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: (("vuong trinh hoi nhap.") OR ((("chung trinh so phan.") OR ("chung trinh danh nhan."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"vuong trinh hoi nhap.\") OR (((\"chung trinh so phan.\") OR (\"chung trinh danh nhan.\"))))".
• Removing quotes may allow a broader search: (( vuong trinh hoi nhap. ) OR ((( chung trinh so phan. ) OR ( chung trinh danh nhan. )))).
• Adding a wildcard symbol may retrieve word variants: (("vuong trinh hoi nhap.") OR ((("chung trinh so phan.") OR ("chung trinh danh nhan."))))*.