Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
trinh hoa » trinh do, trinh han
ho chieu » theo chieu, hoc thieu, doi chieu
trinh vi » trinh va, trinh ve, trinh viet
trinh he » trinh han, trinh thi, trinh ky
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 ((trinh vi) or (((trinh he) or (trinh hoa)))) thong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh vi) OR (((trinh he) OR (trinh hoa)))) thong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh vi) or (((trinh he) or (trinh hoa)))) thong cong dan than cao*.