Perhaps you should try some spelling variations:
xuan truong » xa truong, duong truong
hanh dung » thanh dung, anh dung, hanh dong
luan nang » luan van, van nang, luan san
chu xanh » chu manh, chieu xanh, chua xang
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, toan tap
cua chu » sua chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chu xanh - hanh dung ((luan nang) or (xuan truong)) cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua chu xanh - hanh dung ((luan nang) OR (xuan truong)) cong tap toan cau*.