Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh ha » thanh hoa, thanh hai, nhanh ha
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
ty nang » ky nang, ty xang, ty hang
thuc va » thuc vat, thuc dan, thuc day
so sach » so sanh, bo sach, co sach
su sach » vu sach
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: ((su sach) OR (so sach)) ty nang x hoi. hieu van nam thuc va ((thanh vi) or (thanh ha)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty nang x hoi. hieu van nam thuc va ((thanh vi) OR (thanh ha)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang x hoi. hieu van nam thuc va ((thanh vi) or (thanh ha)) cua viet*".