Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong tin la slippers" » "thong tin la slippers", "luong tai la slippers", "luong thi la slippers", "luong tin va slippers", "luong tin ha slippers", "luong tinh lao slippers", "luong tin la slippery", "luong tin la 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: (((("luong tin la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong tin la slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong tin la slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong tin la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.