Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
tay nhung » tay nung, hay nhung, ty nhung
cong doan » cong dan, cong hoan, dong doanh
phan cau » phan dau, phan cac, phan lap

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 - ((thanh tung) or (thanh cong)) tay nhung cong doan ((phan cau) OR (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((thanh tung) OR (thanh cong)) tay nhung cong doan ((phan cau) OR (phan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((thanh tung) or (thanh cong)) tay nhung cong doan ((phan cau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((thanh tung) or (thanh cong)) tay nhung cong doan ((phan cau) OR (phan tu))*.