Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
sinh trong » sinh truong, sinh trung, dinh trong
dieu luong » dieu duong, dieu tuong, tien luong
luong cong » dung cong, trong cong, cong cong
cong tan » cong tac, cong san, cong thanh
tan khan » tan khang, tan nhan, toan khoan
khan cap » khan ap, than cap, khoan cam

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 (chieu sach)) - sinh trong dieu luong cong tan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu sach)) - sinh trong dieu luong cong tan khan cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu sach)) - sinh trong dieu luong cong tan khan cap*.