Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
dang xay » dang van, van xay
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ve nam » he nam, va nam, le nam
vi cua » vai cua
di cua » dai cua, doi cua, de cua
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky dang xay hoi. hieu ve nam thuoc ((may tinh) or (gia thanh)) ((vi cua) or (di cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky dang xay hoi. hieu ve nam thuoc ((may tinh) OR (gia thanh)) ((vi cua) OR (di cua)) tu.
• Adding a wildcard symbol may retrieve word variants: vu sac ky dang xay hoi. hieu ve nam thuoc ((may tinh) or (gia thanh)) ((vi cua) or (di cua)) tu*.