Perhaps you should try some spelling variations:
sach thame » sach thue
sach tham » sach nha
va triet » va thiet, va trien, ve triet
hanh nam » thanh nam, hanh lam, hanh ngay
hieu va » lieu va, hieu qua
hanh xa » hanh va, hanh ma, hanh xu
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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

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