Perhaps you should try some spelling variations:
thuoc va » thuc va, thuong va, thuoc tai
thanh vi » hanh vi, thanh va, thanh ve
thuoc ma » hoc ma, duoc ma
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
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: vu sach y nang ma hoa. ((hieu ve) or (lieu va)) nam ((thuoc va) OR (thuoc ma)) thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ma hoa. ((hieu ve) OR (lieu va)) nam ((thuoc va) OR (thuoc ma)) thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ma hoa. ((hieu ve) or (lieu va)) nam ((thuoc va) OR (thuoc ma)) thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ma hoa. ((hieu ve) or (lieu va)) nam ((thuoc va) OR (thuoc ma)) thanh vi cua te*.