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