Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve bac » ve bao, ve cac, ve ban
bo van » vo van, so van, ho van
do van » dao van, vo van, so van
x hoi » xa hoi, o hoi, x ho
vi su » va su, ve su, ki su

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. hieu ve bac ((bo van) or (do van)) hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ve bac ((bo van) OR (do van)) hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ve bac ((bo van) or (do van)) hanh vi su triet*.