Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha dan canh snippets" » "pha van canh snippets", "pha dan cach snippets", "pha dan hanh snippets", "pha ban canh snippets", "pha san canh snippets", "pha tan canh 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: (((("pha dan canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha dan canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha dan canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha dan canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.