Perhaps you should try some spelling variations:
tuong vuong » truong vuong, tuong duong, duong vuong
theo chieu » theo tieu, theo chu, thi chieu
vuong manh » duong manh, luong manh, vuong anh
ho chieu » hoc thieu, doi chieu, mot chieu
anh tang » anh bang, anh dang, anh nang
va tuong » va thuong, va thong, xa truong
toan cau » toan cao, toan ban, toan tap
tang va » trang va, tang van, thang va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - anh tang va tuong vuong manh ((toan cau) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - anh tang va tuong vuong manh ((toan cau) or (van ban))~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - anh tang va tuong vuong manh ((toan cau) or (van ban))*.