Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
chong chuan » chung chuan, thong chuan, chong chay
hieu lang » chieu sang, hieu quang, nhieu tang
long cong » luong cong, tong cong, long tong
cong cong » cong dong, trong cong, dung cong
doi hieu » doi chieu, doc hieu, doi hien
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - nhanh chong chuan ((long cong) or (cong cong)) tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - nhanh chong chuan ((long cong) OR (cong cong)) tan tran ban*.