Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat nang du snippets" » "tai nang du snippets", "tap nang du snippets", "thuat nang du snippets", "tat nang tu snippets", "tat nang luc snippets", "tat nang doc 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: (((("tat nang 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: (((("tat nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.