Perhaps you should try some spelling variations:
cua quoc » cua nuoc, cua thuoc
lang mai » lang dai, lang hai, lang man
ban hanh » ban hang
nang tai » hang tai, tang tai, sang tai
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
te sach » toc sach
hieu ve » hieu van
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: te sach y ((lang mai) or (nang tai)) hoi. ((hieu ve) or (hieu va)) cam xuc ban hanh vi cua quoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang mai) OR (nang tai)) hoi. ((hieu ve) OR (hieu va)) cam xuc ban hanh vi cua quoc.
• Adding a wildcard symbol may retrieve word variants: te sach y ((lang mai) or (nang tai)) hoi. ((hieu ve) or (hieu va)) cam xuc ban hanh vi cua quoc*.