Perhaps you should try some spelling variations:
thien van » thi van
tru nang » tra nang, tri nang, truc nano
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
cau cua » cau qua, ca cua, cu cua
hang vi » hang va, hanh vi, hang di
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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 ((tru nang) or (ky nang)) xa hoi. ((thien van) or (lieu va)) cau cua ban hang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tru nang) OR (ky nang)) xa hoi. ((thien van) OR (lieu va)) cau cua ban hang vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tru nang) or (ky nang)) xa hoi. ((thien van) or (lieu va)) cau cua ban hang vi cua tre*.