Perhaps you should try some spelling variations:
"o hinh chieu snippets" » "o minh hieu snippets", "o dinh chien snippets", "o dinh hieu snippets", "mo hinh chieu snippets", "o thinh chieu snippets", "hoa hinh chieu snippets"
"python using java snippets" » "python using data 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: (((("o hinh chieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("o hinh chieu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( o hinh chieu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("o hinh chieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.