Perhaps you should try some spelling variations:
thuoc tai » nuoc tai, hoc tai, thuoc ma
thanh de » hanh de, thanh ve, thanh do
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
cua tren » dua tren, ca tren, cua tre
van cau » van dau, van hau, van chat
truc va » thuc va, thuc vat, trung va
ky danh » ky dang
xay hoi » xa hoi, tay hoi, cay phoi
ly anh » le anh
ky anh » ty anh
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc tai ((ky danh) or (((ky anh) OR (ly anh)))) xay hoi. hieu van cau truc va thanh de cua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc tai ((ky danh) OR (((ky anh) OR (ly anh)))) xay hoi. hieu van cau truc va thanh de cua tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc tai ((ky danh) or (((ky anh) OR (ly anh)))) xay hoi. hieu van cau truc va thanh de cua tren".
• Adding a wildcard symbol may retrieve word variants: thuoc tai ((ky danh) or (((ky anh) OR (ly anh)))) xay hoi. hieu van cau truc va thanh de cua tren*.