Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan kinh do snippets" » "than kinh do snippets", "xuan kinh do snippets", "toan tin do snippets", "toan kinh co snippets", "toan trinh do snippets", "toan kinh hoc 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: (((("toan kinh 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: (((("toan kinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan kinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.