Perhaps you should try some spelling variations:
manh truong » manh tuong, anh truong, minh truong
manh trung » manh tung, thanh trung, manh hung
trong manh » trong minh, trong anh, trong mach
hoc khien » hoc hien, hoc nghien, hoc vien
hoc thieu » toc thieu, hoc hien
quan dung » quang dung, quan duong, qua dung
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc khien) or (hoc thieu)) tinh - ((manh truong) OR (manh trung)) quan dung trong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc khien) OR (hoc thieu)) tinh - ((manh truong) OR (manh trung)) quan dung trong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc khien) or (hoc thieu)) tinh - ((manh truong) OR (manh trung)) quan dung trong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc khien) or (hoc thieu)) tinh - ((manh truong) OR (manh trung)) quan dung trong manh toan ban*.