Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, hieu van
cap thong » cap tong, chap thuong, phap thong
thong dan » thong van, tuong dan, thong den
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((nhieu tang) OR (hieu lang)) - ((thanh trung) or (thanh tung)) cap thong thong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((nhieu tang) OR (hieu lang)) - ((thanh trung) OR (thanh tung)) cap thong thong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((nhieu tang) OR (hieu lang)) - ((thanh trung) or (thanh tung)) cap thong thong dan than cap".
• Adding a wildcard symbol may retrieve word variants: doi ((nhieu tang) OR (hieu lang)) - ((thanh trung) or (thanh tung)) cap thong thong dan than cap*.