Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang tri hoc snippets" » "trang tri hoc snippets", "tang tai hoc snippets", "tang thi hoc snippets", "tang triet hoc snippets", "tang tri thuc snippets", "tang thai 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: (((("tang tri 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: (((("tang tri hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang tri hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang tri hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.