Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
ban thanh » ban hanh, ban hang
ho chieu » theo chieu, hoc thieu, doi chieu
sinh cua » manh cua, sinh va
dinh cuu » dinh chi
van tan » van tuan, van ban, van tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((sinh cua) OR (dinh cuu)) thong cong ((van tan) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((sinh cua) OR (dinh cuu)) thong cong ((van tan) OR (ban thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((sinh cua) OR (dinh cuu)) thong cong ((van tan) or (ban thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((sinh cua) OR (dinh cuu)) thong cong ((van tan) or (ban thanh)) cau*.