Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
hang tri » hang tai, lang tri, nang tri
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hang » van hang, va nang, va lang
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((lang xa) or (nang x)) hoi. hieu ve cham xuc va hang tri va (thiet* or thieu*)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((lang xa) OR (nang x)) hoi. hieu ve cham xuc va hang tri va (thiet* OR thieu*).
• Adding a wildcard symbol may retrieve word variants: su sach ty ((lang xa) or (nang x)) hoi. hieu ve cham xuc va hang tri va (thiet* or thieu*)*.