Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nham thuc » nhan thuc, nam thuc, pham thuc
day doanh » vay doanh, dao doanh, day danh
doanh van » doan van, doanh va, doanh ban
nham thu » nam thu, pham thu, nhan thuc
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
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 ty nang x hoi. lieu va ((nham thuc) OR (nham thu)) day doanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ty nang x hoi. lieu va ((nham thuc) OR (nham thu)) day doanh van cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang x hoi. lieu va ((nham thuc) OR (nham thu)) day doanh van cua tre*.