Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, va tinh, le thanh
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
san cuc » san cua, van cuc, sang cua
cuc tre » duc tre, cua tre, cuu tre
co duc » co duoc, cao duc, do duc
va co » vo co

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)) ky nang xa hoi. lieu va co duc ((va thanh) OR (ban thanh)) san cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang xa hoi. lieu va co duc ((va thanh) OR (ban thanh)) san cuc tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (tu sach)) ky nang xa hoi. lieu va co duc ((va thanh) OR (ban thanh)) san cuc tre*".