Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qi yang doi snippets" » "qi hang doi snippets", "qi nang doc snippets", "qi dung doi snippets", "qi wang doi snippets", "yi yang doi snippets", "hai yang 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: (((("qi yang 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: (((("qi yang doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qi yang doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qi yang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.