Perhaps you should try some spelling variations:
chong phap » phuong phap
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh mang » hanh mang, anh bang, anh dang
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
mang va » mang vua, hang va, bang va

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 - anh mang va nhung ((chong phap) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - anh mang va nhung ((chong phap) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - anh mang va nhung ((chong phap) or (cong tac)) toan cau*.