Perhaps you should try some spelling variations:
dong sai » dong tai, dong san, dung sai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
xa dong » ha dong, van dong, lao dong
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
le tam » le tai, le ham, le nam
thu xa » thu xac, thu ha, thu xe
le ta » le tai, le va

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 nang ma hoi. hieu ((le tam) or (le ta)) thu xa dong sai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu ((le tam) OR (le ta)) thu xa dong sai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu ((le tam) or (le ta)) thu xa dong sai cuu tre*.