Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trang va » tran van, hang va
tan toan » tan tran, tap toan, van toan
tap doan » tap quan
ho hieu » ho chieu, hoi hieu, nho hieu
mang va » mang vua, hang va, bang va

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 - nhanh ((mang va) or (trang va)) nhung cong ((tan toan) or (tap doan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - nhanh ((mang va) OR (trang va)) nhung cong ((tan toan) OR (tap doan)) tap.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - nhanh ((mang va) or (trang va)) nhung cong ((tan toan) or (tap doan)) tap*.