Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong lu hanh slippers" » "cong cu hanh slippers", "cong li hanh slippers", "cong tu hanh slippers", "cong luu hanh slippers", "cong du hanh slippers", "cong ly hanh slippers", "cong lu hanh slippery", "cong lu 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: (((("cong lu 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: (((("cong lu hanh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong lu hanh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong lu hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.