Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi tao chat snippets" » "khi cao chat snippets", "khi van chat snippets", "khi tao cao snippets", "khi nao chat snippets", "khi ta chat snippets", "thi thao chat 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: (((("khi tao chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi tao chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi tao chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi tao chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.