Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thuc van » thuc vat, thuc dan, thuc va
cam thuc » am thuc, nam thuc, cam thu
qua cam » qua cham, qua cac, qua ca
nang ra » nang ma, lang ra, nang ro
nang co » nang cao, nang doc, nang noi
sac ky » cac ky, sai ky
vi cua » vai cua
di cua » dai cua, doi cua, de cua
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((nang co) or (nang ra)) hoi. hieu qua cam thuc van thanh ((vi cua) OR (di cua)) tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang co) OR (nang ra)) hoi. hieu qua cam thuc van thanh ((vi cua) OR (di cua)) tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang co) or (nang ra)) hoi. hieu qua cam thuc van thanh ((vi cua) OR (di cua)) tuc".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang co) or (nang ra)) hoi. hieu qua cam thuc van thanh ((vi cua) OR (di cua)) tuc*.