Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
va hanh » va thanh, va danh, ban hanh
ve chat » va chat, van chat
tu sach » thu sach, te sach, tu cach
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
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) or (su sach)) ky tang xa hoi. hieu ve chat xuc ((va hanh) or (van hanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky tang xa hoi. hieu ve chat xuc ((va hanh) OR (van hanh)) vi su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky tang xa hoi. hieu ve chat xuc ((va hanh) or (van hanh)) vi su triet*.