Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trang tuan » tran tuan, trung tuan, tran xuan
trong tuan » trong quan, trung tuan, trong tan
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
dan tai » van tai, dan thi, han tai
tai cao » thai cao, tao cao, tai sao

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