Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va trien » va truyen, va tuyen, va tieng
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc 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: vu sach ty nang ma hoi. hieu qua cam xuc va hanh vi ((cua triet) or (((va trien) OR (va thiet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ma hoi. hieu qua cam xuc va hanh vi ((cua triet) OR (((va trien) OR (va thiet))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang ma hoi. hieu qua cam xuc va hanh vi ((cua triet) or (((va trien) OR (va thiet))))*".