Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va cham » va chat, va tham
dat cua » dai cua, day cua, mat cua
luc va » duc va, tuc va
loc va » hoc 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: te sach ky nang ma hoa. hieu va cham ((luc va) OR (loc va)) thanh dat cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoa. hieu va cham ((luc va) OR (loc va)) thanh dat cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoa. hieu va cham ((luc va) OR (loc va)) thanh dat cua te*.