Perhaps you should try some spelling variations:
so sanh » do sanh
va danh » va dinh, va dan, va hanh
cam luc » cam xuc, cau luc
sanh ky » hanh ky, sang ky, nganh ky
hieu ve » hieu va, hieu van
tao dai » thoi dai
tao hai » tao tai, tai hai, tao hoi
ky sang » ky nang, ky dang, ky tang
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
di cua » doi cua, de cua, do cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky sang ((tao hai) OR (tao dai)). hieu ve cam luc va danh ((di cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky sang ((tao hai) OR (tao dai)). hieu ve cam luc va danh ((di cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky sang ((tao hai) OR (tao dai)). hieu ve cam luc va danh ((di cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: so sanh ky sang ((tao hai) OR (tao dai)). hieu ve cam luc va danh ((di cua) or (dai cua)) te*.