Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thuc xay » thuc day, tuc xay, thuat xay
xay hang » xay dung, ban hang, ly hang
cau tren » cu tren, dau tren, ca tren
thu san » thuy san, thu ban, phu san
cao hoi » cau hoi, co hoi, cao hoc
lieu ha » lieu nha, lieu va, liem ha
tu san » tu ban, tu can, vu san
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (thu san)) ky nang cao hoi. lieu ha nam thuc xay hang va cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ky nang cao hoi. lieu ha nam thuc xay hang va cau tren".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (thu san)) ky nang cao hoi. lieu ha nam thuc xay hang va cau tren*.