Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
toc sac » toc sach, hoc sach, doc sach
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
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
cua te » cua tu

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

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