Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
ve cai » va cai, ve cac, ve tai
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
vai su » va su, van su, lai su
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ((x hoi) or (xa hoi)). hieu ((ve cai) or (va cam)) tuc va hanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((x hoi) OR (xa hoi)). hieu ((ve cai) OR (va cam)) tuc va hanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((x hoi) or (xa hoi)). hieu ((ve cai) or (va cam)) tuc va hanh vai su triet*.