Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
va trien » va truyen, va thiet, va tuyen
va triet » va thiet, ve triet, cua triet
sach thu » sach thieu, sach tham, cach thuc
hanh dam » thanh dam, hanh lam, hanh nam
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
hanh xa » hanh va, hanh ma, hanh xu
ve cam » ve cham, ve cac, va cam

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 thue) OR (sach thu)) hanh xa hoi. hieu ve cam xuc van hanh dam ((va triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thue) OR (sach thu)) hanh xa hoi. hieu ve cam xuc van hanh dam ((va triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thue) OR (sach thu)) hanh xa hoi. hieu ve cam xuc van hanh dam ((va triet) or (va trien))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach thue) OR (sach thu)) hanh xa hoi. hieu ve cam xuc van hanh dam ((va triet) or (va trien))*.