Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh han » trinh quan
trinh va » trinh van, trinh vat, trinh ve
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
ho lieu » so lieu, co lieu, ho kieu
tan cao » toan cao, tao cao, tay cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - canh ((trinh va) or (trinh han)) nhung ((cong tan) or (cong san)) tan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh ((trinh va) OR (trinh han)) nhung ((cong tan) OR (cong san)) tan cao.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh ((trinh va) or (trinh han)) nhung ((cong tan) or (cong san)) tan cao*.