Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc lieu ca snippets" » "du lieu ca snippets", "duoc lieu cao snippets", "duoc lieu va snippets", "duoc lieu ma 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: (((("duoc lieu ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc lieu ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc lieu ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc lieu ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.