Perhaps you should try some spelling variations:
thanh tung » thanh cong
tieu sang » chieu sang, tieu dung, tiem nang
tung cua » trung cua, tuong cua, dung cua
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
chan ban » can ban, chan nan, chan doan
chat ban » chat ran, can ban, chat va

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 - thanh tung cua ban cong dan ((chan ban) or (((chat ban) OR (nhat ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - thanh tung cua ban cong dan ((chan ban) OR (((chat ban) OR (nhat ban)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - thanh tung cua ban cong dan ((chan ban) or (((chat ban) OR (nhat ban))))".
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - thanh tung cua ban cong dan ((chan ban) or (((chat ban) OR (nhat ban))))*.