Perhaps you should try some spelling variations:
tvan tai » toan tai, tan tai, tuan tai
tao khoi » tao hoi, thao khoa, lao khoa
tu sach » thu sach, su sach, te sach
thuc xa » thuc xay, tuc xa, thuc va
van tai » von tai, van tuan
cua tre » cua te, cuu tre, cua triet
lieu ha » lieu nha, lieu va, liem ha
ky sang » ky dang, ky tang, duy sang
ha am » hoa am, ha nam, ha lam

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 ((ky sang) or (ky nang)) tao khoi. lieu ha am thuc xa ((van tai) or (tvan tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky sang) OR (ky nang)) tao khoi. lieu ha am thuc xa ((van tai) OR (tvan tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky sang) or (ky nang)) tao khoi. lieu ha am thuc xa ((van tai) or (tvan tai)) cua tre*.