Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc dao can snippets" » "doc dao code snippets", "toc dao can snippets", "duc dao can snippets", "hoc dao can snippets", "doc dao van snippets", "doc dao dan snippets", "doc dao cac 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: (((("doc dao 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: (((("doc dao can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doc dao can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc dao can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.