Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"he cac robot snippets" » "he cho robot snippets", "he tao robot snippets", "he a robot snippets", "nhe cac robot snippets", "ve cac robot snippets", "he bac robot snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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: (((("using java code snippets") or ("he cac robot snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("he cac robot snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( he cac robot snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("he cac robot snippets"))) or ("locating bug code slippers"))*.