Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh thong » anh thong, hanh trong, hang thong
thanh phan » thanh pho, thanh san, thanh toan
thong nam » thong xay, dong nam, thong va
dung cong » dung trong
thanh cau » thanh chau, thanh mau, nhanh cau
nam dung » nam vung, nam dong, am dung
cong van » cong vang, cong san, song van

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 thong nam dung cong van ((thanh cau) or (thanh phan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh thong nam dung cong van ((thanh cau) OR (thanh phan)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh thong nam dung cong van ((thanh cau) or (thanh phan))*.