Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
vang phan » nang phan, quang phan, va phan
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
trinh va » trinh van, trinh vat, trinh ve
van phan » van phong, van thanh, luan phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu manh - canh trinh va ((nhung cong) or (hang cong)) ((vang phan) OR (van phan)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - canh trinh va ((nhung cong) OR (hang cong)) ((vang phan) OR (van phan)) cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - canh trinh va ((nhung cong) or (hang cong)) ((vang phan) OR (van phan)) cac".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - canh trinh va ((nhung cong) or (hang cong)) ((vang phan) OR (van phan)) cac*.