Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong thi ba slippers" » "luong tai ba slippers", "luong thi ha slippers", "luong thi ra slippers", "luong thi bach slippers", "luong thi ba slippery", "luong thi ba 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 thi ba 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 thi ba slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong thi ba slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong thi ba slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.