Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh mang » nhanh lang, hanh mang, nhanh quang
cua nhung » va nhung
mang cua » manh cua, dung cua, ban cua
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
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: theo chieu sach - nhanh mang cua nhung ((cong tap) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhanh mang cua nhung ((cong tap) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhanh mang cua nhung ((cong tap) or (cong tac)) toan cau*.