Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
kly nang » ky nang, ki nang, kha nang
su sach » so sach, vu sach
van han » van hanh, van phan, van nhan
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
thai va » thai van
va han » va phan, va hanh, va hang
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 ((ly nang) or (kly nang)) xa hoi. hieu ve cham xuc ((va han) OR (van han)) thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (kly nang)) xa hoi. hieu ve cham xuc ((va han) OR (van han)) thai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly nang) or (kly nang)) xa hoi. hieu ve cham xuc ((va han) OR (van han)) thai va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (kly nang)) xa hoi. hieu ve cham xuc ((va han) OR (van han)) thai va thiet*.