Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh van » trinh han, trinh quan, trinh toan
van thong » van thuong, van phong, va thong
cong sang » cong san, cong lang, cong vang
than cap » khan cap, thanh lap, thanh cac
thai cao » tai cao, thoai cac, thuat cao

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