Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh trong » tranh trong, hanh trong, nhanh trong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
nham dang » nhan dang, nham nang, pham dang
dang cong » dung cong
cong san » cong tac
san than » sang than, san thanh, 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 trong) or (thanh trung)) nham dang cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trong) OR (thanh trung)) nham dang cong san than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trong) or (thanh trung)) nham dang cong san than cao*.