Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuan kinh do snippets" » "xuan dinh do snippets", "qua kinh do snippets", "than kinh do snippets", "xuan kinh co snippets", "xuan trinh do snippets", "xuan kinh hoc 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: (((("xuan kinh 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: (((("xuan kinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuan kinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuan kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.