Perhaps you should try some spelling variations:
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
thang va » hang va, trang va, thong va
dan than » dan chan, ban than, van than
tang va » trang va, tang van, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh ((tang va) or (thang va)) dung cong ((dan than) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((tang va) OR (thang va)) dung cong ((dan than) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tang va) or (thang va)) dung cong ((dan than) or (manh toan)) cau*.