Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh trinh toan thong cong ((manh toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh trinh toan thong cong ((manh toan) OR (van tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh trinh toan thong cong ((manh toan) or (van tuan)) cau*.