Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
duc manh » suc manh, duc anh, duc minh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
ve tai » te tai, de tai, le tai
ve cac » va cac, vien cac
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky dang xa hoi. hieu ((ve tai) OR (ve cac)) duc manh hanh vi cua tu~.
• Adding a wildcard symbol may retrieve word variants: tu cac ky dang xa hoi. hieu ((ve tai) or (ve cac)) duc manh hanh vi cua tu*.