Perhaps you should try some spelling variations:
giang van » hoang van, gian dan, giang day
dang van » hoang van, hang va
cau thuc » cau truc, cuu thuc, can thuc
vat hanh » vat thanh, van hanh, va hanh
te sach » toc sach
qua cau » quan cau, qua cac, qua ca
vi cua » vai cua, di cua
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: te sach y ((giang van) or (dang van)) hoa. hieu qua cau thuc vat hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((giang van) OR (dang van)) hoa. hieu qua cau thuc vat hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: te sach y ((giang van) or (dang van)) hoa. hieu qua cau thuc vat hanh vi cua te*.