Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
van hanh » van thanh, ban hanh, van anh
sach uu » sach luu, sach tu, sach xu
mai hoi » mai khoi, dai hoi, lai hoi
sach ty » sach y, sach tu, sach thu
xuc van » duc van, luc van, vuc van
qua ca » qua cac, qua cua, qua cai
ca xuc » cam xuc, chat xuc
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: te ((sach ty) or (sach uu)) nang mai hoi. hieu qua ca xuc van hanh vi ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach uu)) nang mai hoi. hieu qua ca xuc van hanh vi ((cua te) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach uu)) nang mai hoi. hieu qua ca xuc van hanh vi ((cua te) or (cua triet))*.