Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tri » thanh tri, hanh tai, hanh trinh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
cua tre » cuu tre, cua triet, dua tren
tai ky » thai ky, trai ky, dai ky
sai ky » sac ky
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((tai ky) OR (sai ky)) dang xa hoi. hieu ve cam xuc van hanh tri ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((tai ky) OR (sai ky)) dang xa hoi. hieu ve cam xuc van hanh tri ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((tai ky) OR (sai ky)) dang xa hoi. hieu ve cam xuc van hanh tri ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su ((tai ky) OR (sai ky)) dang xa hoi. hieu ve cam xuc van hanh tri ((cua tre) or (cua te))*.