Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung don » nhung van, nhung bo
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ho cuu » ho chu, ho cua, khao cuu
so cuu » so huu, so cau, so chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho cuu) or (so cuu)) tinh - hanh trinh va ((nhung don) or (dung cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho cuu) OR (so cuu)) tinh - hanh trinh va ((nhung don) OR (dung cong)) tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho cuu) or (so cuu)) tinh - hanh trinh va ((nhung don) or (dung cong)) tan toan cau*.