Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
sach thu » sach thue, sach thieu, sach tham
thu hanh » thuc hanh, thu thanh, thuy hanh
va triet » va thiet, ve triet, cua triet
hanh dam » thanh dam, hanh lam, hanh nam
xa hanh » xa thanh, xa khanh, va hanh
te sach » toc sach
hanh xa » hanh va, hanh ma, hanh xu
ve cham » va cham, ve chat, vu cham
ve cam » ve cac, va cam, ve cai

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

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