Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
canh tran » canh tranh, hanh trang, banh trang
dong cong » duong cong, dung cong, dang cong
hoc tieu » hoc dieu, hoc sieu, hoc tieng
tran van » luan van
cong van » cong vang, cong san, song van
phan dau » phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (hoc tieu)) tinh - canh tran van dong cong van ((phan dau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc tieu)) tinh - canh tran van dong cong van ((phan dau) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc tieu)) tinh - canh tran van dong cong van ((phan dau) or (hang dau))*.