Perhaps you should try some spelling variations:
hanh hanh » hanh han, xanh hanh, nhanh thanh
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
ngu hanh » ngu anh, ngu danh, luu hanh
hanh dai » hanh tai, hanh dao, vanh dai
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((nang xa) or (dang xay)) hoi. ((hieu va) or (lieu va)) thanh ngu hanh hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((nang xa) OR (dang xay)) hoi. ((hieu va) OR (lieu va)) thanh ngu hanh hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu san ky ((nang xa) or (dang xay)) hoi. ((hieu va) or (lieu va)) thanh ngu hanh hanh dai cua triet*.