Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
tieu sang » tieu dung, tiem nang, tinh sang
dan thanh » dang thanh, danh thanh, ban thanh
thanh cac » hanh cac, thanh bac, thanh ca
trang va » hang va
tran van » luan van
cong dan » cong san, cong tan, huong dan

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

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