Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cach dung » cach mang, anh dung, cac ung
luan dung » lan dung, luan dong, luan hung
trong anh » truong anh, trong nganh, trong doanh
tac dung » xay dung, tin dung, van dung
tuan cau » toan cau, quan cau, tuan cu

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 - ((((cach dung) OR (sach dung))) or (tac dung)) luan dung trong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((((cach dung) OR (sach dung))) OR (tac dung)) luan dung trong anh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((((cach dung) OR (sach dung))) or (tac dung)) luan dung trong anh tuan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((((cach dung) OR (sach dung))) or (tac dung)) luan dung trong anh tuan cau*.