Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
anh tai » hanh tai, anh thai, vanh tai
van anh » van thanh, tuan anh, van minh
cam tuc » cam xuc, nam thuc, dam thuc
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
buu tre » cuu tre
nang ma » tang ma, sang ma, nang cao
cam tu » cam thu, nam tu, dam tu

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 ty ((nang ma) or (nang x)) hoi. hieu va ((cam tuc) OR (cam tu)) van anh tai buu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang ma) OR (nang x)) hoi. hieu va ((cam tuc) OR (cam tu)) van anh tai buu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((nang ma) or (nang x)) hoi. hieu va ((cam tuc) OR (cam tu)) van anh tai buu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang ma) or (nang x)) hoi. hieu va ((cam tuc) OR (cam tu)) van anh tai buu tre*.