Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
hoc thieu » toc thieu, hoc hien
quan dong » quang dong, quan long, quan hoang
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: ((theo chieu) or (hoc thieu)) xanh - thanh trung ((quan dong) or (quan luan)) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) xanh - thanh trung ((quan dong) OR (quan luan)) cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) xanh - thanh trung ((quan dong) or (quan luan)) cong tan toan cao*.