Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi chon que snippets" » "voi con que snippets", "voi phong que snippets", "voi chien que snippets", "voi cho que snippets", "voi hon que snippets", "voi thon que 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: (((("voi chon que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi chon que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi chon que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi chon que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.