Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu chan cho snippets" » "thuc chan cho snippets", "thu nhan cho snippets", "chu chan cho snippets", "thu chat cho snippets", "thu han cho snippets", "thu chuan chon 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 chan cho 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 chan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu chan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu chan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.