Perhaps you should try some spelling variations:
anh truong » manh truong, anh thuong, tang truong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
anh trong » anh thuong, dinh trong, lang trong
cong cong » cong dong, trong cong, dung cong
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 lang)) - ((anh truong) OR (anh trong)) cua cong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu lang)) - ((anh truong) OR (anh trong)) cua cong cong tan toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (hieu lang)) - ((anh truong) OR (anh trong)) cua cong cong tan toan cau*".