Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
lang xa » lang ha, lang van
qua cam » qua cham, qua cac, qua ca
hanh di » hanh vi, hanh de, hang di
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
so sac » so sach, so dac

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky ((lang xa) or (dang xay)) hoi. hieu qua cam ((tuc va) or (duc va)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky ((lang xa) OR (dang xay)) hoi. hieu qua cam ((tuc va) OR (duc va)) hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: so sac ky ((lang xa) or (dang xay)) hoi. hieu qua cam ((tuc va) or (duc va)) hanh di cua triet*.