Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
toan cao » toan ban
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: ((theo chieu) or (theo tieu)) sach - hanh trinh quan dung cong tinh ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - hanh trinh quan dung cong tinh ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) sach - hanh trinh quan dung cong tinh ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - hanh trinh quan dung cong tinh ((toan cao) OR (toan tap))*.