Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"yang yu doi snippets" » "yang xu doi snippets", "yang yuan doi snippets", "bang yeu doi snippets", "yang tu doi snippets", "yang nu doi snippets", "yang su doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("yang yu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("yang yu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( yang yu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yang yu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.