Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
luan chung » luan chinh
cua nhung » va nhung
hanh van » thanh van, khanh van, hanh va
cong van » cong vang, cong san, song van
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, 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 - hanh van ((cua nhung) or (luan chung)) cong van ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh van ((cua nhung) OR (luan chung)) cong van ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh van ((cua nhung) or (luan chung)) cong van ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh van ((cua nhung) or (luan chung)) cong van ((phan cau) OR (phan cac))*.