Perhaps you should try some spelling variations:
danh hai » dang hai, lanh hai, manh hai
dang xay » dang van, van xay
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
lang xa » lang ha, lang van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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 ty ((lang xa) OR (dang xay)) hoi. hieu ve cam ((xuc va) or (tuc va)) danh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam ((xuc va) OR (tuc va)) danh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam ((xuc va) or (tuc va)) danh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam ((xuc va) or (tuc va)) danh hai cua tre*.