Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
pho trong » pho thong, cho trong, ho trong
tung pho » tung ho, ung pho, truong pho
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
hang ca » hang va, nang cao, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((nhieu tang) or (chieu sach)) - thanh tung pho trong ((cong ban) OR (cong tan)) hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (chieu sach)) - thanh tung pho trong ((cong ban) OR (cong tan)) hang ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) or (chieu sach)) - thanh tung pho trong ((cong ban) OR (cong tan)) hang ca".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) or (chieu sach)) - thanh tung pho trong ((cong ban) OR (cong tan)) hang ca*.