Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, va danh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
tai cua » thai cua, tai cuc, tri cua
tai cuu » tai cuc, tai buu, thai cua
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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 ((va cam) or (va phat)) luc va hanh ((tai cuu) OR (tai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang xa hoi. hieu ((va cam) OR (va phat)) luc va hanh ((tai cuu) OR (tai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang xa hoi. hieu ((va cam) or (va phat)) luc va hanh ((tai cuu) OR (tai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xa hoi. hieu ((va cam) or (va phat)) luc va hanh ((tai cuu) OR (tai cua)) tre*.