Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
quang dung » quang trung, ung dung, cuong dung
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
trong van » trong cac
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh trinh ((quang dung) or (cua nhung)) trong van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh trinh ((quang dung) OR (cua nhung)) trong van tuan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh trinh ((quang dung) or (cua nhung)) trong van tuan cau*.