Perhaps you should try some spelling variations:
thuat nhung » thuat hung, thuat chung, thuat chuong
hanh trung » thanh trung, hanh trang, manh trung
tuong manh » duong manh, luong manh, tung manh
hien sach » dien sach, thien hach, chieu sach
kien sach » dien sach, vien bach, kien mac
tuan hung » tran hung, luan hung, tuan dung
manh toan » thanh toan, anh tuan, tinh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sach) OR (kien sach)) - hanh trung ((thuat nhung) or (tuan hung)) tuong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (kien sach)) - hanh trung ((thuat nhung) OR (tuan hung)) tuong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) OR (kien sach)) - hanh trung ((thuat nhung) or (tuan hung)) tuong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) OR (kien sach)) - hanh trung ((thuat nhung) or (tuan hung)) tuong manh toan cau*.