Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
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: vu sac ky nang ma hoa. ((hieu ve) OR (hieu van)) nam thuc dan hanh vi cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang ma hoa. ((hieu ve) OR (hieu van)) nam thuc dan hanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ma hoa. ((hieu ve) OR (hieu van)) nam thuc dan hanh vi cua tu*.