Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham dan hoc snippets" » "cham den hoc snippets", "ham dan hoc snippets", "pham dang hoc snippets", "cham van hoc snippets", "cham dan toc snippets", "cham dai 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: (((("cham dan 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 dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.