Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, bien tinh
manh dung » manh hung, manh tung, anh dung
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((lieu tinh) or (diep tinh)) - manh dung ((cua dung) OR (qua dung)) cong danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((lieu tinh) OR (diep tinh)) - manh dung ((cua dung) OR (qua dung)) cong danh toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((lieu tinh) or (diep tinh)) - manh dung ((cua dung) OR (qua dung)) cong danh toan cao*".