Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc dan, thuc va, thuc hanh
thang di » hang di, tang di, thang loi
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
ve nam » va nam, le nam, te nam
he nam » ha nam, nghe nam
di cua » dai cua, doi cua, de cua

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 y nang xa hoi. hieu ((ve nam) or (he nam)) ((thuc van) OR (thuc vat)) thang di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((ve nam) OR (he nam)) ((thuc van) OR (thuc vat)) thang di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((ve nam) or (he nam)) ((thuc van) OR (thuc vat)) thang di cua triet*".