Perhaps you should try some spelling variations:
danh tranh » canh tranh, danh thanh, lanh tranh
sach trinh » sach tranh, sach kinh, sach tren
hanh trinh » canh tranh, hanh chinh
tac danh » sach danh, cac doanh, cac dan
tranh ly » trinh ly, tranh lam, doanh ly
ly khi » ly chi
y khi » ky khi, my khi, y chi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tac danh tranh ly khi đong luc ) or ( thu ((sach trinh) OR (hanh trinh)) y khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tac danh tranh ly khi đong luc ) OR ( thu ((sach trinh) OR (hanh trinh)) y khi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tac danh tranh ly khi đong luc ) or ( thu ((sach trinh) OR (hanh trinh)) y khi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( tac danh tranh ly khi đong luc ) or ( thu ((sach trinh) OR (hanh trinh)) y khi đong luc ))*.