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