Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ban thanh » ban hanh, ban hang
truc ban » thuc ban, truc dan, truc van
thanh ca » thanh cha, thanh cac, thanh ha
hieu va » hieu qua
hieu ve » hieu van
sach 2 » sach y
2 nang » v nang
ca cua » co cua
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: thuoc sach 2 nang x hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) cau truc ban thanh ca cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach 2 nang x hoi. ((hieu ve) OR (((hieu va) OR (lieu va)))) cau truc ban thanh ca cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach 2 nang x hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) cau truc ban thanh ca cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach 2 nang x hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) cau truc ban thanh ca cua te*.