Perhaps you should try some spelling variations:
xay hanh » day nhanh, day thanh, xanh hanh
hieu ve » hieu va, hieu van
hanh va » hang va, hanh vi
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (ve cac)) ky nang x ho. hieu ve cam tu xay hanh va ((cuu tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky nang x ho. hieu ve cam tu xay hanh va ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (ve cac)) ky nang x ho. hieu ve cam tu xay hanh va ((cuu tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (ve cac)) ky nang x ho. hieu ve cam tu xay hanh va ((cuu tre) OR (cua tre))*.