Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi dong vo snippets" » "hoi dong vo snippets", "khi dong vo snippets", "kho dong vo snippets", "khoi dong von snippets", "khoi dong voi snippets", "khoi dong co 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: (((("khoi dong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi dong vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi dong vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi dong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.