Perhaps you should try some spelling variations:
hieu cua » hieu qua, dieu cua, bieu cua
danh dai » danh dau, danh di, vanh dai
danh sai » dung sai, danh dau, hanh san
danh bat » doanh bat, anh bai, dinh ba
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
cua cau » cua cac, cua chu, cua cay
truc va » thuc va, thuc vat, trung va
y nang » ky nang, ly nang, v nang
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu cua cau truc va ((danh dai) or (((danh sai) or (danh bat)))) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu cua cau truc va ((danh dai) OR (((danh sai) OR (danh bat)))) cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu cua cau truc va ((danh dai) or (((danh sai) or (danh bat)))) cua te*.