Perhaps you should try some spelling variations:
sach tranh » canh tranh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh ly » trinh ky, trinh do, trinh tu
te canh » ve canh, te danh, re canh
tu sach » thu sach, su sach, te sach
tranh y » trinh y, tranh o, tranh 30
y khi » ly khi, ky khi, my khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te canh trinh ly chi đong luc ) or ( tu sach tranh y khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te canh trinh ly chi đong luc ) OR ( tu sach tranh y khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( te canh trinh ly chi đong luc ) or ( tu sach tranh y khi đong luc ))*.