Perhaps you should try some spelling variations:
"h2o using java snippets" » "h2o using data snippets", "h2o using java slippers"
"dong cung code snippets" » "dong chung code snippets", "dong hung code snippets", "dong cong code snippets", "dong cung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("h2o using java snippets") or ("dong cung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("h2o using java snippets") OR ("dong cung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( h2o using java snippets ) or ( dong cung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("h2o using java snippets") or ("dong cung code snippets"))) or ("locating bug code snippets"))*.