Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi diem so snippets" » "hai diem so snippets", "thi dieu so snippets", "hoi kiem so snippets", "thoi diem pho 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: (((("thoi diem so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoi diem so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi diem so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi diem so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.