Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
cau theo » cau thi, cau tao
toc sac » toc sach, toc san, hoc sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
dan vat » dang vat, van vat, dan va
vat cau » dat cau, va cau, van cau
sac ky » cac ky, sai ky
nam tu » nam thu, nam thuc
va dan » ca dan, va dao, 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: toc sac ky lang xa hoi. lieu va ((nam thuoc) or (nam tu)) va dan vat cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky lang xa hoi. lieu va ((nam thuoc) OR (nam tu)) va dan vat cau theo.
• Adding a wildcard symbol may retrieve word variants: toc sac ky lang xa hoi. lieu va ((nam thuoc) or (nam tu)) va dan vat cau theo*.