Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung nam so snippets" » "thong nam so snippets", "chung ta so snippets", "sung nam so snippets", "chung nam sao snippets", "chung nam bo 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: (((("chung nam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chung nam so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung nam so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung nam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.