Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
vi dung » va dung, vi ung, viet dung
vi dong » voi dong, va dong, di dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - hanh trinh ((vi dung) OR (vi dong)) cong tan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh trinh ((vi dung) OR (vi dong)) cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh trinh ((vi dung) OR (vi dong)) cong tan toan ban*.