Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
va pham » van pham, va phat, va phan
va phap » va phat, ban phap
van anh » tuan anh, van minh
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: te sach ky nang x hoi. hieu ((va pham) or (va phap)) duc ((van anh) OR (van thanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu ((va pham) OR (va phap)) duc ((van anh) OR (van thanh)) vi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu ((va pham) or (va phap)) duc ((van anh) OR (van thanh)) vi su triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((va pham) or (va phap)) duc ((van anh) OR (van thanh)) vi su triet*.