Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
thai nhung » thi nhung, thai vung, thai hang
tham nhung » thi nhung
hoc thieu » toc thieu, hoc hien
hay nhung » tay nhung, hanh nhung, khac nhung
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 xanh - thanh tung ((hay nhung) or (((thai nhung) OR (tham nhung)))) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung ((hay nhung) OR (((thai nhung) OR (tham nhung)))) cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tung ((hay nhung) or (((thai nhung) OR (tham nhung)))) cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung ((hay nhung) or (((thai nhung) OR (tham nhung)))) cong tan toan cao*.