Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu tao con snippets" » "khu tap con snippets", "khu bao con snippets", "khau tai con snippets", "khu cao cong snippets", "khu vao cong snippets", "khu tao dong 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: (((("khu tao 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: (((("khu tao con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu tao con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu tao con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.