Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
va trien » va truyen, va thiet, va tuyen
vu sach » vu bach, vu khach
su sach » so sach
mai hoi » mai khoi, dai hoi, lai hoi
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (su sach)) ky nang mai hoi. hieu qua cam xuc va hanh vi ((cua triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ky nang mai hoi. hieu qua cam xuc va hanh vi ((cua triet) OR (va trien)).
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (su sach)) ky nang mai hoi. hieu qua cam xuc va hanh vi ((cua triet) or (va trien))*.