Perhaps you should try some spelling variations:
vat danh » va danh, van danh, luat danh
cau thuc » cau truc, cuu thuc, can thuc
sach ty » sach y, sach tu, sach thu
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
va cau » van cau, va cac, va dau
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((nang xa) or (nang ma)) hoi. lieu va cau thuc vat danh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (nang ma)) hoi. lieu va cau thuc vat danh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang ma)) hoi. lieu va cau thuc vat danh ((vi cua) or (di cua)) tre*.