Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chao du hoc snippets" » "chao xu hoc snippets", "cho du hoc snippets", "chao chu hoc snippets", "chao tu hoc snippets", "chao duoc hoc 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: (((("chao du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chao du hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chao du hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.