Perhaps you should try some spelling variations:
dang cay » dang xay, dang ca, dung cay
dang cac » dung cac, bang cac, dong cac
nam thuc » nam thuoc, am thuc, nam thu
vat tuan » van tuan, va tuan, vat thanh
te sach » toc sach
hieu ve » hieu va, hieu van
vai cua » hai cua, lai cua, bai cua
ve nam » he nam, va nam, le nam

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 ((dang cay) OR (dang cac)) phoi. hieu ve nam thuc vat tuan ((vai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((dang cay) OR (dang cac)) phoi. hieu ve nam thuc vat tuan ((vai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((dang cay) OR (dang cac)) phoi. hieu ve nam thuc vat tuan ((vai cua) or (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((dang cay) OR (dang cac)) phoi. hieu ve nam thuc vat tuan ((vai cua) or (dai cua)) tre*.