Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don bat dong snippets" » "don hoat dong snippets", "don ha dong snippets", "don van dong snippets", "don bay dong snippets", "doanh bat dong snippets", "dong bac dong 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: (((("don bat dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don bat dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don bat dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don bat dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.