Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh vi do snippets" » "hanh vi do snippets", "thanh va do snippets", "thanh ve do snippets", "thanh vi mo snippets", "thanh v do 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: (((("thanh vi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh vi do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh vi do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh vi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.