Perhaps you should try some spelling variations:
manh truong » manh trung, manh tuong, anh truong
chieu sang » chieu sach, chieu xanh, nhieu tang
truong cua » truong ca, truong quan, truong cao
hieu lang » hieu quang, nhieu tang, hieu van
cong cong » cong dong, trong cong, dung cong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan 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 ((chieu sang) or (hieu lang)) - manh truong cua cong cong tan ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu lang)) - manh truong cua cong cong tan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (hieu lang)) - manh truong cua cong cong tan ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu lang)) - manh truong cua cong cong tan ((toan cao) OR (toan tap))*.