Perhaps you should try some spelling variations:
"cpphuong trinh co phan." » "chuong trinh co phan." (Expand Search), "phuong trinh co phan." (Expand Search), "chuong tinh co phan." (Expand Search), "cpphuong trinh cao phan." (Expand Search), "cpphuong trinh do phan." (Expand Search), "cpphuong trinh cong phan." (Expand Search)
"khung trinh gom phan." » "chuong trinh gom phan." (Expand Search), "hung tinh gom phan." (Expand Search), "khuong tinh gom phan." (Expand Search), "khung trinh ngoc phan." (Expand Search), "khung trinh ngon phan." (Expand Search), "khung trinh mon phan." (Expand Search), "khung trinh gop phan." (Expand Search), "khung trinh nom phan." (Expand Search)
"cong trinh hoc dan." » "chuong trinh hoc dan." (Expand Search), "cong trinh hoi dan." (Expand Search), "cong trinh khac dan." (Expand Search), "cong trinh mon dan." (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: (((("khung trinh gom phan.") OR ("cpphuong trinh co phan."))) OR ("cong trinh hoc dan."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"khung trinh gom phan.\") OR (\"cpphuong trinh co phan.\"))) OR (\"cong trinh hoc dan.\"))".
• Removing quotes may allow a broader search: (((( khung trinh gom phan. ) OR ( cpphuong trinh co phan. ))) OR ( cong trinh hoc dan. )).
• Adding a wildcard symbol may retrieve word variants: (((("khung trinh gom phan.") OR ("cpphuong trinh co phan."))) OR ("cong trinh hoc dan."))*.