Perhaps you should try some spelling variations:
tang hanh » tang thanh, dang hanh, nang hanh
dang xay » dang van, van xay
thu sach » tu sach, thuat sach, thuoc sach
xuc tang » tuc tang, duc tang, duc thang
hanh di » hanh vi, hanh de, hang di
hieu va » lieu va, hieu qua
te sach » toc sach
lang xa » lang ha, lang van
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thu sach)) ky ((lang xa) OR (dang xay)) hoi. hieu va cam xuc tang hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) ky ((lang xa) OR (dang xay)) hoi. hieu va cam xuc tang hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thu sach)) ky ((lang xa) OR (dang xay)) hoi. hieu va cam xuc tang hanh di cua tre*".