Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
nang co » nang cao, nang doc, nang noi
vu khac » vu kham, vu khanh, bui khac
co loi » co hoi
cam tu » cam thu, nam tu, tam tu
dam tu » nam tu, tam tu, dam thuc
vi cua » vai cua, di cua

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 khac)) ky nang co loi. hieu va ((cam tu) OR (dam tu)) va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khac)) ky nang co loi. hieu va ((cam tu) OR (dam tu)) va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (vu khac)) ky nang co loi. hieu va ((cam tu) OR (dam tu)) va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khac)) ky nang co loi. hieu va ((cam tu) OR (dam tu)) va danh vi cua tre*.