Perhaps you should try some spelling variations:
te sach » toc sach
dan via » dan gia, dan gian, dan giai
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
ky sang » ky dang, ky tang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
suc va » duc va, tuc va, luc va
dan va » doan va, dan ca, ban va
co suc » cao suc, co su, cong suc
va co » vo co

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) or (ky nang)) ma hoi. hieu va co suc va ((dan via) OR (dan va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky nang)) ma hoi. hieu va co suc va ((dan via) OR (dan va)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) or (ky nang)) ma hoi. hieu va co suc va ((dan via) OR (dan va)) cua tre*".