Perhaps you should try some spelling variations:
nhung vuong » hung vuong, nhung huong, nhung tuong
hanh trinh » canh tranh, hanh chinh
mot chieu » doi chieu
vuong van » duong van, luong van, muong van
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (mot chieu)) sach - hanh trinh va nhung vuong van ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (mot chieu)) sach - hanh trinh va nhung vuong van ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (mot chieu)) sach - hanh trinh va nhung vuong van ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (mot chieu)) sach - hanh trinh va nhung vuong van ((toan cau) OR (toan tap))*.