Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
van tai » von tai, van tuan
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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: tu sac ky nang xa hoi. hieu ((((van tai) or (anh tuan))) or (van thanh)) nuoc va hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((((van tai) OR (anh tuan))) OR (van thanh)) nuoc va hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((((van tai) or (anh tuan))) or (van thanh)) nuoc va hanh vi su triet*.