Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri nam cao snippets" » "tri nao cao snippets", "tri tam cao snippets", "trieu nam cao snippets", "tri nam sao snippets", "tri nam giao 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 nam cao 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 nam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri nam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.