Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tham mo snippets" » "dong tam mo snippets", "hong tham mo snippets", "dong thap mo snippets", "dong pham mo snippets", "dong tham my snippets", "dong tham 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: (((("dong tham 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: (((("dong tham mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tham mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tham mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.