Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung den ho snippets" » "tuong den ho snippets", "tung dan ho snippets", "huong den ho snippets", "tung den hoc snippets", "tung den o snippets", "tung den do 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: (((("tung den ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung den ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung den ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung den ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.