Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi ba chu snippets" » "thi ha chu snippets", "thi ra chu snippets", "thi bach chu snippets", "thi bua chu snippets", "thi ba thu snippets", "thi va chu 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: (((("thi ba chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi ba chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi ba chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi ba chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.