Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
dan khai » dang khai, van khai, dang khoi
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
dan hai » doan hai, dang hai, van hai
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu va cam duc va ((dan hai) or (dan khai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu va cam duc va ((dan hai) OR (dan khai)) cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu va cam duc va ((dan hai) or (dan khai)) cua triet*.