Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu van » hieu va, thien van, lieu va
chat tuc » chat xuc, luat tuc, chat huu
van chat » cao chat
tu sach » thu sach, su sach, te sach
tuc va » thuc va, truc va, tuc xa
va dap » va dao, va dau
dap va » tap va, day va, dap ve
va cua » va chua, via cua, ca cua
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuoc sach)) ky nang ((x hoi) or (xa hoi)). hieu van chat tuc va dap va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuoc sach)) ky nang ((x hoi) OR (xa hoi)). hieu van chat tuc va dap va cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuoc sach)) ky nang ((x hoi) or (xa hoi)). hieu van chat tuc va dap va cua te*.