Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
dua tren » dung tren
tu sach » su sach, te sach, tu cach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
ban ban » ban banh, van ban, can ban
va lam » van lam, va lap
ban ve » ban va
cua tu » cua tuc, cua su, cua cu

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 (thu sach)) ty nang xa hoi. lieu va lam xuc ban ban ve ((dua tren) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ty nang xa hoi. lieu va lam xuc ban ban ve ((dua tren) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ty nang xa hoi. lieu va lam xuc ban ban ve ((dua tren) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ty nang xa hoi. lieu va lam xuc ban ban ve ((dua tren) or (cua tu))*.