Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh lap » thanh san, phan lap, thanh hai
thi nang » thi cong, ki nang, thi hanh
cua viet » ca viet, hoa viet, cua vat
thi van » thi lan, thi hanh
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc dan, thuc day
ty nang » ky nang, ty xang, ty hang
lap cua » lai cua, tap cua, lam cua
xuc va » duc va, tuc va, luc va
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. ((thi van) or (thi nang)) bac ((xuc va) or (thuc va)) thanh lap cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ty nang x hoi. ((thi van) OR (thi nang)) bac ((xuc va) OR (thuc va)) thanh lap cua viet.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang x hoi. ((thi van) or (thi nang)) bac ((xuc va) or (thuc va)) thanh lap cua viet*.