Perhaps you should try some spelling variations:
trinh nhung » trinh phuong, trinh dung
tranh nhung » tranh hang, tran hung, thanh hung
hoc thieu » hoc hien
manh tran » manh toan, manh tuan, canh tranh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan 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 thieu) or (toc thieu)) xanh - manh tran ((tranh nhung) OR (trinh nhung)) cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - manh tran ((tranh nhung) OR (trinh nhung)) cong tan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - manh tran ((tranh nhung) OR (trinh nhung)) cong tan toan tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - manh tran ((tranh nhung) OR (trinh nhung)) cong tan toan tap*.