Perhaps you should try some spelling variations:
truong luong » thuong luong, trong luong, truong huong
hieu xanh » chieu xanh, hieu manh, hieu nganh
doc hieu » toc thieu, hoc thieu, hoc hien
mang cua » manh cua, dung cua, ban cua
van quan » van ban
tin toan » tinh toan, trinh toan, thien toan
nin toan » tinh toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh ((mang cua) OR (van quan)) truong luong ((tin toan) OR (nin toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh ((mang cua) or (van quan)) truong luong ((tin toan) OR (nin toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh ((mang cua) or (van quan)) truong luong ((tin toan) OR (nin toan)) ban*.