Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hanh luan » khanh luan, hang luan, hanh luat
van thong » van thuong, van phong, va thong
tuan chau » tran chau, chuan chau, thanh chau
cong van » cong vang, song van, cong tan
cong san » cong tac

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 tinh - hanh luan van thong ((cong van) or (cong san)) tuan chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh luan van thong ((cong van) OR (cong san)) tuan chau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh luan van thong ((cong van) or (cong san)) tuan chau*.