Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
danh huong » anh huong, dinh huong, manh huong
hoc thieu » toc thieu, hoc hien
luat danh » luat doanh, luat dan, luat canh
phan cau » phan dau, phan cac, phan tu
toan tap » toan ban

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 - canh trinh luat danh huong dan ((phan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh luat danh huong dan ((phan cau) OR (toan tap))*.