Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
sach ky » sac ky, sach ty, sach kem
va hanh » va thanh, va danh, ban hanh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
x hoi » xa hoi, o hoi, x ho
ve su » va 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) or (sach y)) nang x hoi. hieu va cham xuc ((va hanh) or (van hanh)) ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang x hoi. hieu va cham xuc ((va hanh) OR (van hanh)) ve su triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) nang x hoi. hieu va cham xuc ((va hanh) or (van hanh)) ve su triet*.