Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"mong cai chet snippets" » "cong cau chet snippets", "cong cac chet snippets", "dong cac chet snippets", "mong chai chet snippets", "mong kai chen snippets", "mong la chet snippets"
"locating bug code snippets" » "locating bug core snippets", "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 ("mong cai chet snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("mong cai chet snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( mong cai chet snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("mong cai chet snippets"))) or ("locating bug code snippets"))*.