Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho cu hoc snippets" » "cho chu hoc snippets", "cho ca hoc snippets", "cho tu hoc snippets", "cho cua hoc snippets", "cho cuu hoc snippets", "cho cau 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: (((("cho cu 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: (((("cho cu hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho cu hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho cu hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.