Perhaps you should try some spelling variations:
ban manh » ban hanh, van manh, ban mach
manh hai » lanh hai, minh hai, thanh hai
sach ty » sach tu, sach thu, xach tay
cao hoi » cau hoi, co hoi, cao hoc
xuc ban » duc ban, cuc ban, quoc ban
hai cua » thai cua, dai cua, hoi cua
cua tu » cua tuc, cua su, cua cu

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) OR (sach y)) nang cao hoi. ((hieu qua) or (lieu va)) cam xuc ban manh hai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach y)) nang cao hoi. ((hieu qua) OR (lieu va)) cam xuc ban manh hai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach y)) nang cao hoi. ((hieu qua) or (lieu va)) cam xuc ban manh hai cua tu".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach y)) nang cao hoi. ((hieu qua) or (lieu va)) cam xuc ban manh hai cua tu*.