Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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 - ((((anh tang) or (hanh mang))) or (hanh trinh)) va dung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - ((((anh tang) OR (hanh mang))) OR (hanh trinh)) va dung cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chu manh - ((((anh tang) or (hanh mang))) or (hanh trinh)) va dung cong san toan cao*.