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