Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
luan trong » luat trong, luan tuong, luong trong
quan trong » gian trong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong vang » cong lang, cong quang, cong ngang
vang gian » van gian, dan gian, nang giao
gian chau » gian cham, gian cua, gian cac
hoc hieu » hoc thieu, hoc hien, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - doanh doanh ((luan trong) or (quan trong)) cong vang gian chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - doanh doanh ((luan trong) OR (quan trong)) cong vang gian chau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - doanh doanh ((luan trong) or (quan trong)) cong vang gian chau*.