Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham cua hoc snippets" » "chat cua hoc snippets", "cham cuu hoc snippets", "ham cua hoc snippets", "cham cua hoi snippets", "cham cua thuoc snippets", "cham cua nuoc 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: (((("cham cua 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: (((("cham cua hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham cua hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham cua hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.