Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong dam he snippets" » "trong lam he snippets", "trong nam he snippets", "trong cac he snippets", "trong dam ha snippets", "trong dam me 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: (((("trong dam he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong dam he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong dam he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong dam he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.