Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap cho lon snippets" » "cap cho lon snippets", "tap cho lon snippets", "giap thi lon snippets", "giap cho cong snippets", "giap chon loc 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: (((("giap cho lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap cho lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap cho lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap cho lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.