Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, hien nhanh, chieu xanh
quan tong » quan trong, quan long, quan nong
quan dong » quang dong, quan long, quan hoang
danh toan » anh toan, dan toan, dang toan
manh toan » thanh toan, anh tuan, tinh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh trinh ((quan tong) OR (quan dong)) cong ((danh toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh ((quan tong) OR (quan dong)) cong ((danh toan) OR (manh toan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh trinh ((quan tong) OR (quan dong)) cong ((danh toan) or (manh toan)) cau*".