Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan do voi snippets" » "toan ho voi snippets", "toan co voi snippets", "toan du voi snippets", "toan doi voi snippets", "toan dao voi snippets", "toan do moi 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 do voi 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 do voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan do voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan do voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.