Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong quang » luong quang, thong quang, duong quang
hoc thieu » toc thieu
tranh van » tran van, trinh van, thanh van
van dung » van dong, xay dung, tin dung
cong van » cong vang, cong san, song van
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (hoc thieu)) xanh - hanh tranh van dung ((cong van) or (cong quang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (hoc thieu)) xanh - hanh tranh van dung ((cong van) OR (cong quang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (hoc thieu)) xanh - hanh tranh van dung ((cong van) or (cong quang)) toan ban*.