Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao thi can snippets" » "cao thi code snippets", "cau thi can snippets", "cao tai can snippets", "dao thi can snippets", "cao thi canh snippets", "cao thi lan snippets", "cao thi dan snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cao thi can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao thi can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao thi can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao thi can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.