Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua hang » cua dang, cua nhung, cua ban
cong tac » cong ty
xa bang » va bang, ba bang, ra bang
tac xa » tuc xa, tac da

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 sang)) - hanh tinh ((cua hang) OR (cua cong)) cong tac xa bang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sang)) - hanh tinh ((cua hang) OR (cua cong)) cong tac xa bang.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu sang)) - hanh tinh ((cua hang) OR (cua cong)) cong tac xa bang".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sang)) - hanh tinh ((cua hang) OR (cua cong)) cong tac xa bang*.