Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
huong doi » huong dan, trong doi
thuc dan » thuc hanh, hoc dan, thuc vat
lang van » dang van, tang van, hoang van
dung doi » dung tai, dung co, dung mo
vu sach » su sach, vu khach
va cham » va chat, va tham
hieu va » lieu va, hieu qua
ky lang » ky nang, ky dang, ky tang
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: ((vu sach) or (vu bach)) ky lang van hoa. hieu va cham thuc dan ((dung doi) or (huong doi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ky lang van hoa. hieu va cham thuc dan ((dung doi) OR (huong doi)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu bach)) ky lang van hoa. hieu va cham thuc dan ((dung doi) or (huong doi)) cua te*.