Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lu van anh slippers" » "lu van thanh slippers", "lu van minh slippers", "lu tuan anh slippers", "luu van anh slippers", "luc van anh slippers", "le van anh slippers", "lu van anh slippery", "lu van anh 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: (((("lu van anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lu van anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lu van anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lu van anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.