Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hien sach » kien sach, thien hach, chieu sach
dien sach » dien anh
thu huong » thu cong
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 (dien sach)) - hanh trinh quan ((thu huong) or (nhung cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (dien sach)) - hanh trinh quan ((thu huong) OR (nhung cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) or (dien sach)) - hanh trinh quan ((thu huong) or (nhung cong)) dan toan ban*.