Perhaps you should try some spelling variations:
thanh trang » thanh trung, hanh trang, thanh thang
chieu sang » chieu sach, chieu xanh, nhieu tang
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, biet lang
hieu van » hieu va, thien van, lieu va
trang va » tran van, hang va
cong tac » cong ty
tac thai » toc thai, rac thai, sac thai
thai cao » tai cao, thoai cac, thuat cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (((hieu lang) OR (hieu van)))) - thanh trang va nhung cong tac thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (((hieu lang) OR (hieu van)))) - thanh trang va nhung cong tac thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (((hieu lang) OR (hieu van)))) - thanh trang va nhung cong tac thai cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (((hieu lang) OR (hieu van)))) - thanh trang va nhung cong tac thai cao*.