Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu lich can snippets" » "thu tich can snippets", "thu ich can snippets", "thuy linh can snippets", "thu dich can snippets", "thu lich han 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: (((("thu lich can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu lich can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu lich can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu lich can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.