Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
cong tac » cong ty
toan cao » toan tap
toan ban » van ban

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) or (chieu xanh)) - manh trung cap nhung cong tac ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - manh trung cap nhung cong tac ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu xanh)) - manh trung cap nhung cong tac ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - manh trung cap nhung cong tac ((toan cao) OR (toan ban))*.