Perhaps you should try some spelling variations:
cau phuc » chau phu, huu phuc, van phuc
tay lang » tai lang, tay tang, tay quang
vu sach » vu bach, vu khach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
su sach » so sach
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (su sach)) tay lang xa hoi. hieu ve ((cau phuc) or (cau truc)) va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) tay lang xa hoi. hieu ve ((cau phuc) OR (cau truc)) va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) tay lang xa hoi. hieu ve ((cau phuc) or (cau truc)) va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) tay lang xa hoi. hieu ve ((cau phuc) or (cau truc)) va danh vi cua tre*.