Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung theo chu snippets" » "dung theo code snippets", "sung theo chu snippets", "vung theo chu snippets", "luong theo chu snippets", "dung theo chieu snippets", "dung cho chu snippets", "dung chao chu snippets"
"hang java java snippets" » "hang va java 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: (((("dung theo chu snippets") or ("hang java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung theo chu snippets") OR ("hang java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung theo chu snippets ) or ( hang java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung theo chu snippets") or ("hang java java snippets"))) or ("locating bug core snippets"))*.