Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
hieu va » lieu va, hieu qua
cao suc » cao su, cao duc
va dinh » van dinh, va tinh, vu dinh
va kinh » va tinh, qua kinh
lai cua » dai cua, hai cua, lai chau
va cao » va cac, va co, va dao
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 xa hoi. hieu va cao suc ((va dinh) OR (va kinh)) lai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang xa hoi. hieu va cao suc ((va dinh) OR (va kinh)) lai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang xa hoi. hieu va cao suc ((va dinh) OR (va kinh)) lai cua te*.