Perhaps you should try some spelling variations:
danh cong » dang cong, hanh cong, anh cong
cong cua » cong cu, dong cua, huong cua
hieu va » lieu va, hieu qua
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
tang ma » mang may, tang van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc va » duc va, tuc va, luc va
san ky » van ky, dan ky, ban ky
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((san ky) OR (sang ky)) ((nang xa) or (tang ma)) hoi. hieu va cac xuc va danh cong cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) ((nang xa) OR (tang ma)) hoi. hieu va cac xuc va danh cong cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) OR (sang ky)) ((nang xa) or (tang ma)) hoi. hieu va cac xuc va danh cong cua su".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) OR (sang ky)) ((nang xa) or (tang ma)) hoi. hieu va cac xuc va danh cong cua su*.