Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung cong » dung cong, thong cong, hang cong
thuc dieu » thu dieu, thuc hieu, thuat dieu
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
vang hang » van hang, hang hang, nang hang
hang ca » hang va, nang cao, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuc dieu hanh - ((nhanh lang) or (canh tranh)) cua nhung cong vang hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuc dieu hanh - ((nhanh lang) OR (canh tranh)) cua nhung cong vang hang ca*.