Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim dong hoc snippets" » "kim dung hoc snippets", "kim jong hoc snippets", "kim huong hoc snippets", "kim dong co snippets", "kim dong luc 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: (((("kim dong 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: (((("kim dong hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim dong hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim dong hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.