Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
tuan hung » tran hung, luan hung, tuan dung
hung cong » nhung cong, hung cuong, phung cong
ho chieu » theo chieu, doi chieu, mot chieu
cong bai » cuong bai, cong hai, cung bai
bai toan » bai tap
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 (ho chieu)) xanh - ((thanh trung) or (thanh tung)) tuan hung cong bai toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (ho chieu)) xanh - ((thanh trung) OR (thanh tung)) tuan hung cong bai toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (ho chieu)) xanh - ((thanh trung) or (thanh tung)) tuan hung cong bai toan cao*.