Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
qua cham » qua hai, qua cac, va cham
vu sach » vu bach, su sach, vu khach
lang xa » lang ha, dang xay, lang van
sang ma » tang ma, nang ma, sang tao
soc va » hoc va, loc va, doc va
va dan » ca dan, va dao, va dau
dan vi » doan vi, don vi, dan va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y ((lang xa) or (sang ma)) hoi. hieu qua cham soc va dan vi ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((lang xa) OR (sang ma)) hoi. hieu qua cham soc va dan vi ((cua te) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach y ((lang xa) or (sang ma)) hoi. hieu qua cham soc va dan vi ((cua te) or (cua triet))*.