Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung va » truong va, trang va, trung ha
tuong va » truong va, thuong va, luong va
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cao » toan cao, thai cao, than cap

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 - thanh ((((trung va) or (dung va))) or (tuong va)) thong cong tan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((((trung va) OR (dung va))) OR (tuong va)) thong cong tan than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((((trung va) or (dung va))) or (tuong va)) thong cong tan than cao*.