Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham suc » cham soc, cham cuu, cao suc
manh han » manh hai, manh hon, anh han
tu sach » thu sach, su sach, te sach
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang xa) or (lang xa)) hoi. hieu ve cham suc manh han tai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cham suc manh han tai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (lang xa)) hoi. hieu ve cham suc manh han tai ((cua tre) or (cua triet))*.