Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khat sua chu snippets" » "thuat sua chu snippets", "khat ha chu snippets", "luat sua chu snippets", "khat sua chua snippets", "khat cua chu snippets", "khat bua 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: (((("khat sua 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: (((("khat sua chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khat sua chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khat sua chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.