Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
va thanh » gia thanh, ban thanh, va tinh
ky dang » ky nang, ky danh
va hanh » van hanh, va danh, ban hanh
chao tu » chao xu, cho tu, cao tu
vu chao » vu cao, vu cham, vu chat
hieu vu » hieu va, hieu ve, hieu su
dai hoa » dai khoa, dai hoc, dai hoi
lai hoa » loai hoc
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuc van ky dang ((lai hoa) OR (dai hoa)). hieu vu chao tu ((va hanh) or (va thanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuc van ky dang ((lai hoa) OR (dai hoa)). hieu vu chao tu ((va hanh) OR (va thanh)) vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuc van ky dang ((lai hoa) OR (dai hoa)). hieu vu chao tu ((va hanh) or (va thanh)) vi cua tu".
• Adding a wildcard symbol may retrieve word variants: thuc van ky dang ((lai hoa) OR (dai hoa)). hieu vu chao tu ((va hanh) or (va thanh)) vi cua tu*.