Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
trung cap » truong cao, trung tam
dung cong » dung trong
nang hang » nang sang, cang thang, lang thang
hang hang » cang thang, hung thang, lang thang
cap dung » ap dung, cao dung, chan dung

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

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