Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
bo sach » co sach, hoc sach
nang xa » nang x, lang xa, nang ma
dan vai » dan va, dan tai, dan vat
vai cua » dai cua, hai cua, lai cua
hieu d » dieu d, hieu 2, hieu _
d pham » d phan
va dan » ca dan, va dao, va dau
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: ((tu sach) or (bo sach)) ky nang xa hoi. hieu d pham duc va dan vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (bo sach)) ky nang xa hoi. hieu d pham duc va dan vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (bo sach)) ky nang xa hoi. hieu d pham duc va dan vai cua te*.