Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
thanh trung » thanh tung
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
trung chan » trung phan, trong chan, trung can
phuong lap » phuong la, phuong lan, phong lap
chan dung » van dung, dan dung
tien anh » tieng anh, tien manh, dien anh
lap toan » tap toan, lap doanh, phap toan
toan cau » 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 ((((thieu xanh) or (tien anh))) or (chieu xanh)) - thanh trung chan dung phuong lap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (tien anh))) OR (chieu xanh)) - thanh trung chan dung phuong lap toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (tien anh))) or (chieu xanh)) - thanh trung chan dung phuong lap toan cau*.