Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"gian luong cac snippets" » "gian muong cac snippets", "gia luong cac snippets", "giang duong cac snippets", "gian luong cuoc snippets", "gian luong va snippets", "gian luong tai 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 ("gian luong cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("gian luong cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( gian luong cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("gian luong cac snippets"))) or ("locating bug code snippets"))*.