Perhaps you should try some spelling variations:
thien van » thi van
tat thanh » tai thanh, ta thanh, tat thang
nam thuc » nam thuoc, am thuc, nam thu
thuc tat » thuc vat, thuc tap, thuc tai
thanh va » thanh van, hanh va, thanh ha
cac tren » ca tren, cau tren, rac tren
tu sach » thu sach, su sach, tu cach
te sach » toc sach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma

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) or (te sach))) or (so sach)) ky nang xa hoi. thien van nam thuc tat thanh va cac tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (te sach))) OR (so sach)) ky nang xa hoi. thien van nam thuc tat thanh va cac tren.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (te sach))) or (so sach)) ky nang xa hoi. thien van nam thuc tat thanh va cac tren*.