Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi tao voi snippets" » "che tao voi snippets", "chi dao voi snippets", "cai tao voi snippets", "chi tao boi snippets", "chi tao 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: (((("chi tao 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: (((("chi tao voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi tao voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi tao voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.