Perhaps you should try some spelling variations:
thanh tung » thanh cong
cua truong » xuan truong, cac truong, xa truong
hoc thieu » hoc hien
cua trung » xuan trung, cua nhung, ba trung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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) or (toc thieu)) xanh - thanh tung ((cua trung) OR (cua truong)) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - thanh tung ((cua trung) OR (cua truong)) cong tan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - thanh tung ((cua trung) OR (cua truong)) cong tan toan cao*".