Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao lan hoat snippets" » "cao luan hoat snippets", "cao dan hoat snippets", "cao lap hoat snippets", "cao van hoat snippets", "cao dang hoat snippets", "cao tang hoat 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: (((("cao lan hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao lan hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao lan hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao lan hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.