Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khuc chat co snippets" » "khuc hat co snippets", "hoc chat co snippets", "hut chat co snippets", "khuc thuat co snippets", "khuc chat cua snippets", "khuc chat deo 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: (((("khuc chat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuc chat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuc chat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuc chat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.