Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh dai » hanh tai, hanh dao, vanh dai
va cham » va chat, va tham
te sach » toc sach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
te sac » te cac, te san
ve cam » ve cham, ve cac, va cam
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: ((te sac) OR (te sach)) ky nang x hoi. hieu ((ve cam) or (va cham)) thuc va hanh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te sach)) ky nang x hoi. hieu ((ve cam) OR (va cham)) thuc va hanh dai cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te sach)) ky nang x hoi. hieu ((ve cam) or (va cham)) thuc va hanh dai cua viet*".