Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua thu moi snippets" » "cua chu moi snippets", "ca thu moi snippets", "cua tu moi snippets", "cua thi moi snippets", "cua tho moi snippets", "cua thu hoi 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: (((("cua thu moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua thu moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua thu moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua thu moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.