Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu cu chi snippets" » "khi cu chi snippets", "khu du chi snippets", "khu vu chi snippets", "khu cu cho snippets", "khu ca chi 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 cu chi 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 cu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu cu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu cu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.