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