Perhaps you should try some spelling variations:
hanh trinh » canh tranh
dung cong » dung trong
hoc lien » hoc hien, hoc vien, hoc tien
hoc dieu » hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
va dung » van dung, va duong, vat dung
tan van » tran van, tang van, luan van
van cau » van dau, van hau, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc lien) or (hoc dieu)) anh - ((hanh trinh) or (hanh chinh)) va dung cong tan van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc lien) OR (hoc dieu)) anh - ((hanh trinh) OR (hanh chinh)) va dung cong tan van cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc lien) or (hoc dieu)) anh - ((hanh trinh) or (hanh chinh)) va dung cong tan van cau*.