Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
dang xay » dang van, van xay
truc va » thuc va, thuc vat, trung va
hai cua » dai cua, hoi cua, lai cua
va danh » va dinh, va dan, va hanh
su sach » so sach
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
vu sach » vu bach, vu khach
va cau » van cau, va cac, va dau

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 sach)) ky dang xay hoi. lieu va cau truc va danh ((hai cua) OR (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky dang xay hoi. lieu va cau truc va danh ((hai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky dang xay hoi. lieu va cau truc va danh ((hai cua) OR (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky dang xay hoi. lieu va cau truc va danh ((hai cua) OR (thai cua)) tre*.