Perhaps you should try some spelling variations:
ho chieu » theo chieu, hoc thieu, doi chieu
kha nang » phap nang, ky nang, ki nang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
doi chi » doi khi
va bang » va nang, va lang, va ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) xanh - canh tranh ((va bang) or (kha nang)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) xanh - canh tranh ((va bang) OR (kha nang)) cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) xanh - canh tranh ((va bang) or (kha nang)) cong dan toan ban*.