Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach thi » sach thu, sach tai, sach thieu
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
va triet » va thiet, va trien, ve triet
thi hanh » thi thanh
hanh xa » hanh va, hanh ma, hanh xu
ve cam » ve cham, ve cac, ve cai
lam va » nam va, dam va, lam ha
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach thi hanh xa hoi. hieu ((ve cam) or (va cam)) tuc ((van hanh) OR (ban hanh)) lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach thi hanh xa hoi. hieu ((ve cam) OR (va cam)) tuc ((van hanh) OR (ban hanh)) lam va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach thi hanh xa hoi. hieu ((ve cam) or (va cam)) tuc ((van hanh) OR (ban hanh)) lam va triet".
• Adding a wildcard symbol may retrieve word variants: thuat sach thi hanh xa hoi. hieu ((ve cam) or (va cam)) tuc ((van hanh) OR (ban hanh)) lam va triet*.