Perhaps you should try some spelling variations:
nhung cau » chung cu, nhung bai, nhu cau
thu sach » tu sach, thuat sach, thuoc sach
ty nhung » tay nhung, tu nhung, ky nhung
hanh via » hanh vi, hanh va, anh va
via cua » gia cua, gian cua, giau cua
sach ty » sach y, sach tu, sach thu
duoc va » duc va, duoc ma, duong va
ve bao » te bao, va bao
ve tao » de tao, ve tac, ve tai
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nhung cau hoi. hieu ((ve tao) OR (ve bao)) ((duoc va) or (nuoc va)) hanh via cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nhung cau hoi. hieu ((ve tao) OR (ve bao)) ((duoc va) OR (nuoc va)) hanh via cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nhung cau hoi. hieu ((ve tao) OR (ve bao)) ((duoc va) or (nuoc va)) hanh via cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nhung cau hoi. hieu ((ve tao) OR (ve bao)) ((duoc va) or (nuoc va)) hanh via cua te*.