Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data vi hong snippets" » "dat vi hong snippets", "data v0 hong snippets", "data vu hong snippets", "data vi dong snippets", "data thi hong 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: (((("data vi hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data vi hong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data vi hong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data vi hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.