Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tho cua du snippets" » "thao cua du snippets", "tho ca du snippets", "tro cua du snippets", "tho cua duc snippets", "tho cua ndu snippets", "tho cua su 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: (((("tho cua 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: (((("tho cua du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho cua du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho cua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.