Perhaps you should try some spelling variations:
"using java coode snippets" » "using data coode snippets", "using java cooode snippets", "using java caoode snippets", "using java _oode snippets"
"dung va c snippets" » "dung va co snippets", "dung va ca snippets", "dung va _ snippets"
"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: (((("using java coode snippets") or ("dung va c snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java coode snippets") OR ("dung va c snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java coode snippets ) or ( dung va c snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java coode snippets") or ("dung va c snippets"))) or ("locating bug code snippets"))*.