Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
ho lieu » so lieu, co lieu, ho kieu
van tan » van tuan, van ban, van tai

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 - hanh trinh cua nhung cong ((xuan toan) or (van tan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh trinh cua nhung cong ((xuan toan) OR (van tan)) cao*.