Perhaps you should try some spelling variations:
danh tai » doanh tai, dinh tai, hanh tai
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
ve cham » ve chat, vu cham, ve chim
va cham » va chat, va tham
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
cuc tre » duc tre, cuu tre, cuc thue
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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 y nang xa hoi. hieu ((ve cham) or (va cham)) truc va danh tai ((cuc tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((ve cham) OR (va cham)) truc va danh tai ((cuc tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((ve cham) or (va cham)) truc va danh tai ((cuc tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((ve cham) or (va cham)) truc va danh tai ((cuc tre) OR (cua tre))*.