Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
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 sach ky nang xa hoi. ((thien van) OR (thi van)) chao xu ((va thanh) or (van thanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. ((thien van) OR (thi van)) chao xu ((va thanh) OR (van thanh)) vi su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. ((thien van) OR (thi van)) chao xu ((va thanh) or (van thanh)) vi su triet*".