Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
van dung » van dong, xay dung, tin dung
va tuong » va thuong, va thong, xa truong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » 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 ((chieu sang) or (hieu manh)) - manh trung ((van dung) or (va tuong)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu manh)) - manh trung ((van dung) OR (va tuong)) cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu manh)) - manh trung ((van dung) or (va tuong)) cong tan toan cau*.