Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
va danh » va dinh, va dan, va hanh
cam luc » cam xuc, cau luc
sanh ky » hanh ky, nganh ky, thanh ky
hieu ve » hieu va, hieu van
lap hai » lap tai, lap lai, lap hoat
sang ky » sang kyo, dang ky, tang ky
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) OR (sang ky)) sang lap hai. 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) OR (sang ky)) sang lap hai. 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) OR (sang ky)) sang lap hai. hieu ve cam luc va danh ((di cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: so ((sanh ky) OR (sang ky)) sang lap hai. hieu ve cam luc va danh ((di cua) or (dai cua)) te*.