Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
nang cong » nang song, dang cong, bang cong
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau
ha nang » kha nang, hoa nang, da nang

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 ha nang cong dan ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung ha nang cong dan ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung ha nang cong dan ((than cau) or (phan dau))*.