Perhaps you should try some spelling variations:
"zhang chuan ha snippets" » "khang chan ha snippets", "chung chuan ha snippets", "khang khuan ha snippets", "zhang chuan he snippets", "zhang quan ha snippets", "zhang xuan ha snippets", "zhang chuan ha slippers"
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"locating bug code snippets" » "locating bug core 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: (((("using java code snippets") or ("zhang chuan ha snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("zhang chuan ha snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( zhang chuan ha snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("zhang chuan ha snippets"))) or ("locating bug code snippets"))*.