Perhaps you should try some spelling variations:
thanh tieng » hanh tieng, thanh tung, thanh vien
viet truong » viet trung, vien truong, viet trong
truong cong » trong cong, truong dong, truong long
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tien » thanh vien, thanh nien, thang tien
hoc thieu » toc thieu, hoc hien
cong san » cong tac
san van » tan van, luan van, tran van

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 tieng) or (thanh tien)) viet truong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh tieng) OR (thanh tien)) viet truong cong san van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh tieng) or (thanh tien)) viet truong cong san van ban*.