Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho toi doi snippets" » "pho voi doi snippets", "nho toi doi snippets", "cho tuoi doi snippets", "pho tri doi snippets", "pho hoi 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: (((("pho toi 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: (((("pho toi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho toi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho toi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.