Perhaps you should try some spelling variations:
dang xay » dang van, van xay
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
lang ha » long ha
cua tre » cua te, cuu tre, cua triet
xuc va » tuc va, luc va, xac va
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 y ((lang ha) or (dang xay)) hoi. hieu va chat ((xuc va) OR (duc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang ha) OR (dang xay)) hoi. hieu va chat ((xuc va) OR (duc va)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((lang ha) or (dang xay)) hoi. hieu va chat ((xuc va) OR (duc va)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((lang ha) or (dang xay)) hoi. hieu va chat ((xuc va) OR (duc va)) hanh di cua tre*.