Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc mong cua snippets" » "hoc cong cua snippets", "hoc bong cua snippets", "hoc mon cua snippets", "hoc muong cua snippets", "hoc dong cua 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: (((("hoc mong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc mong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc mong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc mong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.