Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
thanh tung » thanh cong
tung cao » nung cao, truong cao, trung cap
nong ban » nong dan, nong san, nong van
dong ban » dong bang, dong san, dong bac
than tap » toan tap, han tap, phan 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 (chiet tach)) - thanh tung cao dang ((nong ban) or (dong ban)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chiet tach)) - thanh tung cao dang ((nong ban) OR (dong ban)) than tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chiet tach)) - thanh tung cao dang ((nong ban) or (dong ban)) than tap*.