Perhaps you should try some spelling variations:
phuong tuong » phong tuong, phuong duong, phuong luong
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
manh toan » thanh toan, anh tuan, tinh toan
hoc hieu » hoc thieu, hoc hien, doc hieu
tinh cua » trinh cua, sinh cua, tinh chat
dan toan » van toan, dan than, xuan 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 hieu manh - hanh tinh cua phuong tuong ((dan toan) or (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh tinh cua phuong tuong ((dan toan) OR (manh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh tinh cua phuong tuong ((dan toan) or (manh toan)) tap*.