Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thu duc cao snippets" » "thu duc code snippets", "thu tuc cao snippets", "tho duc cao snippets", "thu muc cao snippets", "thu duc dao snippets", "thu doc cao snippets", "thu duc bao snippets"
"python using java snippets" » "python using data 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: (((("thu duc cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu duc cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thu duc cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu duc cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.