Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam anh du snippets" » "lam banh du snippets", "lam lanh du snippets", "lan anh du snippets", "lam anh duc snippets", "lam danh du snippets", "lam anh d 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: (((("lam anh 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: (((("lam anh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam anh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam anh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.