Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
duong manh » duong van
trong sinh » trong kinh, trong san
tranh cua » doanh cua, manh cua
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu tinh - canh tranh cua nhung ((duong manh) or (trong sinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh tranh cua nhung ((duong manh) OR (trong sinh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh tranh cua nhung ((duong manh) or (trong sinh)) toan cau*.