Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
truong tai » truong dai, truong thi, truong cao
hoc thieu » toc thieu, hoc hien
truong ma » truong va, truong ca, trung ma
trong ban » trong san, trong tan, trong quan
ban than » ban thanh, van thanh, ban hang
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 ((truong ma) or (truong tai)) dung trong ban than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong ma) OR (truong tai)) dung trong ban than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong ma) or (truong tai)) dung trong ban than cao*.