Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
cong tinh » long tinh, cong thanh, trong tinh
cong vinh » trong vinh, cong viec, cong viet
tuong tac » cong tac, luong tai, tuong lai
doi hieu » doi chieu, doc hieu, doi hien
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung

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 - canh manh cua dung ((((cong tinh) or (cong trinh))) or (cong vinh)) tuong tac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh manh cua dung ((((cong tinh) OR (cong trinh))) OR (cong vinh)) tuong tac.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh manh cua dung ((((cong tinh) or (cong trinh))) or (cong vinh)) tuong tac*.