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