Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap kinh con snippets" » "than kinh con snippets", "toan kinh con snippets", "tri kinh con snippets", "tap kinh co snippets", "tap kinh mon snippets", "tap kinh can 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: (((("tap kinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap kinh con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap kinh con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap kinh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.