Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va phan » van phan, va phap, hoa phan
thai va » thai van
dai va » mai va
thiet » thieu

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 nang xa hoi. hieu ve cham xuc ((va phan) OR (va phat)) ((dai va) or (thai va)) thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ve cham xuc ((va phan) OR (va phat)) ((dai va) OR (thai va)) thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ve cham xuc ((va phan) OR (va phat)) ((dai va) or (thai va)) thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ve cham xuc ((va phan) OR (va phat)) ((dai va) or (thai va)) thiet*.