Perhaps you should try some spelling variations:
vuong thuat » thuong thuat, trong thuat, vuong tat
cong thuat » trong thuat, cong thuc, cong suat
cong thanh » dong thanh, cong trinh, cong tan
cong manh » cong danh, duong manh, hoang manh
chi xanh » chi anh, chi danh, chi hanh
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh ((cong thuat) OR (vuong thuat)) nhung ((cong manh) or (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh ((cong thuat) OR (vuong thuat)) nhung ((cong manh) OR (cong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - thanh ((cong thuat) OR (vuong thuat)) nhung ((cong manh) or (cong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh ((cong thuat) OR (vuong thuat)) nhung ((cong manh) or (cong thanh)) toan ban*.