Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh cua » tinh cua, trinh luat, trinh quan
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu

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) or (thong cong)) tan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh trinh cua ((nhung cong) OR (thong cong)) tan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh trinh cua ((nhung cong) or (thong cong)) tan ((toan tai) or (toan ban))*.