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