Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hang cua » hang ca, huong cua, thong cua
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: theo ((thuc hanh) or (chieu sach)) - hanh ((hang cua) or (mang cua)) nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thuc hanh) OR (chieu sach)) - hanh ((hang cua) OR (mang cua)) nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (chieu sach)) - hanh ((hang cua) or (mang cua)) nhung cong dan toan cau*.