Perhaps you should try some spelling variations:
thanh ha » thanh hoa, thanh hai, nhanh ha
thuc dan » thuc hanh, hoc dan, thuc vat
thuc da » thuc day, thuc dia, thuc va
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
ha cua » hoa cua, hai cua, nha 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) or (vu bach)) ty nang xa hoi. hieu ve cam ((thuc da) OR (thuc dan)) thanh ha cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu bach)) ty nang xa hoi. hieu ve cam ((thuc da) OR (thuc dan)) thanh ha cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu bach)) ty nang xa hoi. hieu ve cam ((thuc da) OR (thuc dan)) thanh ha cua tre*".