Perhaps you should try some spelling variations:
te sach » toc sach
dat cua » dai cua, day cua, mat cua
dan dat » dung dat, dong dat, dinh dat
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
ve cham » va cham, vu cham, ve chim
mai hoi » mai khoi, dai hoi, lai hoi
ky sang » ky nang, ky dang, ky tang
ma hoi » xa hoi, ma hoa, me hoi
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
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 ky sang ((ma hoi) OR (mai hoi)). hieu ((ve cham) or (ve chat)) xuc va dan dat cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang ((ma hoi) OR (mai hoi)). hieu ((ve cham) OR (ve chat)) xuc va dan dat cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang ((ma hoi) OR (mai hoi)). hieu ((ve cham) or (ve chat)) xuc va dan dat cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang ((ma hoi) OR (mai hoi)). hieu ((ve cham) or (ve chat)) xuc va dan dat cua te*.