Perhaps you should try some spelling variations:
thuong phuong » truong phuong, thong phuong, thong thuong
canh trinh » canh tranh, hanh trinh, canh tinh
phuong tap » phuong tay, phuong tai, phuong phap
thi chieu » thi chien, thi hieu, theo chieu
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
tap doan » tap quan
doan dau » doan dieu, phan dau, doan va

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) or (thi chieu)) xanh - canh trinh va thuong phuong tap doan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) xanh - canh trinh va thuong phuong tap doan dau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) xanh - canh trinh va thuong phuong tap doan dau*.