Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat linh hon snippets" » "van linh hon snippets", "vat lich hon snippets", "vat sinh hon snippets", "vat minh hon snippets", "vat linh ho snippets", "vat dinh hong 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: (((("vat linh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat linh hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat linh hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat linh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.