Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach kem » hanh kem
kha nang » phap nang, ky nang, ki nang
nang doi » nang doc, nang noi, hang doi
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
doi cua » dai cua, hoi cua
ve cac » va cac, vien cac
cac tu » cac thu, cach tu, cac du
tu kha » tu khoa, tu kham, tue kha

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 kem) or (sach ty)) lang xa hoi. hieu ve cac tu kha nang doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sach ty)) lang xa hoi. hieu ve cac tu kha nang doi cua triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sach ty)) lang xa hoi. hieu ve cac tu kha nang doi cua triet*.