Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
quan tre » quan tren, quang tri, quang tru
thuc day » thuc dan, thuc vat
te sach » toc sach
dan van » dang van, doan van, dao van
ky lang » ky nang, ky dang, ky tang
thuc va » thuc vat, thuc dan
sach ky » sac ky, sach y, sach ty
va cay » va cac, va cao, va cai

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 lang van hoa. lieu va cay ((thuc va) or (thuc day)) dan van ((quan tre) OR (quan tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang van hoa. lieu va cay ((thuc va) OR (thuc day)) dan van ((quan tre) OR (quan tri)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang van hoa. lieu va cay ((thuc va) or (thuc day)) dan van ((quan tre) OR (quan tri))".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang van hoa. lieu va cay ((thuc va) or (thuc day)) dan van ((quan tre) OR (quan tri))*.