Perhaps you should try some spelling variations:
hung thang » cang thang, hung tran
hieu lang » chieu sang, hieu quang, nhieu tang
cong phan » cong nhan, cong khan, chong phap
phan cong » thanh cong
toc hieu » toc thieu, doc hieu, hoc thieu
anh cong » hanh cong, anh dong, thanh cong
dung dat » dung va, dung tai
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu lang - anh cong phan cong ((hung thang) or (dung dat)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu lang - anh cong phan cong ((hung thang) OR (dung dat)) phan lap.
• Adding a wildcard symbol may retrieve word variants: toc hieu lang - anh cong phan cong ((hung thang) or (dung dat)) phan lap*.