Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri xa dong snippets" » "tri ha dong snippets", "tri van dong snippets", "tri lao dong snippets", "thi xa dong snippets", "tri va 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: (((("tri xa 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: (((("tri xa dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri xa dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri xa dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.