Perhaps you should try some spelling variations:
truong dao » truong dai, truong cao, truong bo
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
trung va » truong va, trang va, trung ha
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 hieu manh - thanh ((trung va) or (truong dao)) nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh ((trung va) OR (truong dao)) nhung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh ((trung va) or (truong dao)) nhung cong tan toan cao*.