Perhaps you should try some spelling variations:
thien van » thi van
thanh tai » thanh hai, thanh toan, doanh tai
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
thuc va » thuc vat, thuc dan, thuc day
tai cua » thai cua, tai cuc, tri cua
thu va » thue va, tu va, thu ha
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ky) or (sach y)) lang xa hoi. thien van nam ((thu va) OR (thuc va)) thanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach y)) lang xa hoi. thien van nam ((thu va) OR (thuc va)) thanh tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sach y)) lang xa hoi. thien van nam ((thu va) OR (thuc va)) thanh tai cua te".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach y)) lang xa hoi. thien van nam ((thu va) OR (thuc va)) thanh tai cua te*.