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