Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri tan voi snippets" » "tri tuan voi snippets", "tri tang voi snippets", "tri tai voi snippets", "tri than voi snippets", "tri ban voi snippets", "tri tan hoi 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 tan 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: (((("tri tan voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri tan voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri tan voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.