Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh han » tranh hang, trinh han, tranh ban
han thong » han thuong, hang thong, nhan thong
cong vang » cong lang, cong quang, cong ngang
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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 xanh - canh tranh han thong ((cong san) or (cong vang)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh han thong ((cong san) OR (cong vang)) than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh han thong ((cong san) or (cong vang)) than cap*.