Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat dan hanh slippers" » "bat dang hanh slippers", "bat dan khanh slippers", "bat dan thanh slippers", "bat dau hanh slippers", "ban dan hanh slippers", "bat can hanh slippers", "bat dan hanh slippery", "bat dan hanh grippers"
"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: (((("bat dan hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bat dan hanh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat dan hanh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat dan hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.