Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau va cham snippets" » "dau va chat snippets", "dau va tham snippets", "dau ve cham snippets", "dai va cham snippets", "dan va cham 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: (((("dau va cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau va cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau va cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau va cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.