Perhaps you should try some spelling variations:
cac khoi » cac thoi, cac khoan, cach thoi
nang cac » nang cao, bang cac, hang cac
doanh ca » doanh cua, doanh cao, doanh va
va doanh » van doanh, vay doanh, va danh
sach hay » sach han, sach ha, sach nay
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
ca cua » co cua
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: tu ((((sach hay) OR (sach ty))) OR (sac ky)) nang cac khoi. hieu ve cam xuc va doanh ca cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((((sach hay) OR (sach ty))) OR (sac ky)) nang cac khoi. hieu ve cam xuc va doanh ca cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((((sach hay) OR (sach ty))) OR (sac ky)) nang cac khoi. hieu ve cam xuc va doanh ca cua te*.