Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hanh te » hanh tu, hanh ve, hanh de
luc van » luoc van, luu van, duc van
te cua » tue cua, le cua, de cua
te sac » te sach, te cac, te san
va cam » va cham, va cao, va cai
sac ky » cac ky, sai ky
ve cai » va cai, ve cac, ve tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky dang xa hoi. hieu ((ve cai) or (((va cam) or (va cac)))) luc van hanh te cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang xa hoi. hieu ((ve cai) OR (((va cam) OR (va cac)))) luc van hanh te cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xa hoi. hieu ((ve cai) or (((va cam) or (va cac)))) luc van hanh te cua tre*.