Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
thuc va » thuc dan, thuc day
hai su » hai vu, lai su, hai so

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 ly nang xa hoi. hieu ve cham ((thuc va) OR (thuc vat)) thanh hai su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang xa hoi. hieu ve cham ((thuc va) OR (thuc vat)) thanh hai su triet".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang xa hoi. hieu ve cham ((thuc va) OR (thuc vat)) thanh hai su triet*.