Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
truc va » thuc vat, trung va
thuc va » thuc vat, thuc dan, thuc day
tai cua » thai cua, tri cua, dai cua
va cao » va cac, va co, va dao

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 ky dang xa hoi. lieu va cao ((truc va) or (thuc va)) danh ((tai cua) OR (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. lieu va cao ((truc va) OR (thuc va)) danh ((tai cua) OR (tai cuc)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. lieu va cao ((truc va) or (thuc va)) danh ((tai cua) OR (tai cuc)) tre*".