Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
nam thuc » nam thuoc, nam thu, nam tu
ban hanh » ban hang
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
hanh va » hang va, hanh vi
va cua » va chua, via cua, ca 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: thuat lanh ((ky sang) or (ky dang)) ma hoa. lieu va ((nam thuc) OR (am thuc)) ban hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ((ky sang) OR (ky dang)) ma hoa. lieu va ((nam thuc) OR (am thuc)) ban hanh va cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ((ky sang) or (ky dang)) ma hoa. lieu va ((nam thuc) OR (am thuc)) ban hanh va cua te*".