Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
thuc day » thuc dan, thuc vat
phan lap » phan dau
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc dan
vu nham » vu kham, vu cham, sua nham
hieu vu » hieu va, hieu ve, hieu su
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang co hoc. hieu vu nham ((thuc va) or (thuc day)) phan lap ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang co hoc. hieu vu nham ((thuc va) OR (thuc day)) phan lap ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang co hoc. hieu vu nham ((thuc va) or (thuc day)) phan lap ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang co hoc. hieu vu nham ((thuc va) or (thuc day)) phan lap ((cua triet) OR (su triet))*.