Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cua triet, dua tren
dan day » da day, dan dat, dan da
va cham » va chat, va tham
vu cham » vu kham, tu cham, qua cham
nang ma » tang ma, sang ma, nang cao
cuu tre » cau tren, cau treo
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
ma hoi » mai hoi, xa hoi, ma hoa

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 nang ma hoi. hieu ((vu cham) OR (va cham)) xuc va dan day ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu ((vu cham) OR (va cham)) xuc va dan day ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoi. hieu ((vu cham) OR (va cham)) xuc va dan day ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu ((vu cham) OR (va cham)) xuc va dan day ((cua tre) or (cuu tre))*.