Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky
kem cu » kem cd

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ky ((nang ma) or (nang x)) hoi. hieu ve cham xuc van dich ((kem cu) OR (kem chu)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ky ((nang ma) OR (nang x)) hoi. hieu ve cham xuc van dich ((kem cu) OR (kem chu)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ky ((nang ma) or (nang x)) hoi. hieu ve cham xuc van dich ((kem cu) OR (kem chu)) tren".
• Adding a wildcard symbol may retrieve word variants: tu dan ky ((nang ma) or (nang x)) hoi. hieu ve cham xuc van dich ((kem cu) OR (kem chu)) tren*.