Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cuoc luc » coc luc, duoc lac, duoc luu
van hanh » van thanh, ban hanh, van ban
vai cua » dai cua, hai cua, lai cua
van anh » van thanh, tuan anh, van minh
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
ly hang » ly quang
tu sach » su sach, te sach, tu cach
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: ((thu sach) OR (tu sach)) ly hang xa hoi. hieu va cuoc luc ((van hanh) or (van anh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ly hang xa hoi. hieu va cuoc luc ((van hanh) OR (van anh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ly hang xa hoi. hieu va cuoc luc ((van hanh) or (van anh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ly hang xa hoi. hieu va cuoc luc ((van hanh) or (van anh)) vai cua te*.