Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
tru nang » tra nang, tri nang, truc nano
danh dai » danh dau, danh sai, vanh dai
danh di » danh du, xanh di, danh dien
cao suc » cao su, cao duc
qua cao » qua cac, qua ca, qua cai
suc va » duc va, tuc va, luc va
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (hoc sach)) tru nang x hoi. hieu qua cao suc va ((danh dai) OR (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) tru nang x hoi. hieu qua cao suc va ((danh dai) OR (danh di)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (hoc sach)) tru nang x hoi. hieu qua cao suc va ((danh dai) OR (danh di)) cua te*".