Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thong lieu data snippets" » "thong dieu data snippets", "thong tieu data snippets", "thong lien data snippets", "thong lieu dao snippets", "thong bieu dat snippets", "thong lieu da 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: (((("thong lieu data snippets") or ("hang java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong lieu data snippets") OR ("hang java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thong lieu data snippets ) or ( hang java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong lieu data snippets") or ("hang java java snippets"))) or ("locating bug core snippets"))*.