Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hieu quang » thieu quang, hieu quan, hieu qua
thanh tung » thanh cong
tran hoang » tran hong, quan hoang, tran quang
hoang cong » hang cong, hoang long, hoang vuong
hieu lang » chieu sang, hieu van, biet lang
tung tran » trung tran, hung tran, huong tran
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan

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

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