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