Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
thien van » thi van
tu sach » thu sach, su sach, tu cach
cam qua » cac qua, cay qua, nam qua
tai cua » thai cua, tai cuc, tri cua
nang xa » nang x, lang xa, nang ma
te sach » toc sach
cua tre » cua te, cuu tre, cua triet

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)) ky nang xa hoi. thien van ((cam qua) OR (cau qua)) ban thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. thien van ((cam qua) OR (cau qua)) ban thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang xa hoi. thien van ((cam qua) OR (cau qua)) ban thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. thien van ((cam qua) OR (cau qua)) ban thanh tai cua tre*.