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