Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung tai » truong tai, trung dai, trong tai
nung cong » nhung cong, dung cong, nang cong
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
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 tam) or (trung tai)) nung cong van than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung tam) OR (trung tai)) nung cong van than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung tam) or (trung tai)) nung cong van than cao*.