Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
xuat chung » luat chung, xuat thuong, xuat phuong
kieu tinh » lieu tinh, trieu tinh, diep tinh
dung tinh » dang tinh, dung ninh, dung tin
cua tinh » cua sinh, va tinh, ha tinh
xuat ung » xuat duong, xuat quang, xuat tuong
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((kieu tinh) or (cua tinh)) - hanh trinh ((xuat ung) OR (xuat chung)) dung tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((kieu tinh) OR (cua tinh)) - hanh trinh ((xuat ung) OR (xuat chung)) dung tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((kieu tinh) or (cua tinh)) - hanh trinh ((xuat ung) OR (xuat chung)) dung tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((kieu tinh) or (cua tinh)) - hanh trinh ((xuat ung) OR (xuat chung)) dung tinh toan cau*.