Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
anh dung » anh dong, anh huong, sach dung
qua dung » quang dung, su dung, qua song
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: ho ((chieu sach) OR (chieu sang)) - ((anh tang) or (anh dung)) qua dung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - ((anh tang) OR (anh dung)) qua dung cong tan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - ((anh tang) or (anh dung)) qua dung cong tan toan cao*".