Perhaps you should try some spelling variations:
canh thanh » canh tranh, danh thanh, anh thanh
thanh qua » thanh quan, thanh qui, hanh qua
dung cong » dung trong
hoc hieu » hoc thieu, doc hieu, hoc dieu
qua dung » quang dung, su dung, qua song
tang van » dang van, hoang van, trong van
van vat » van chat, nhan vat

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) OR (hoc hien)) ca - canh thanh qua dung cong ((van vat) or (tang van)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) ca - canh thanh qua dung cong ((van vat) OR (tang van)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) OR (hoc hien)) ca - canh thanh qua dung cong ((van vat) or (tang van)) cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) OR (hoc hien)) ca - canh thanh qua dung cong ((van vat) or (tang van)) cau*.