Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
tong cong » trong cong, cong cong, dung cong
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac
moc cua » hoc cua, moi cua, goc cua
doc cua » hoc cua, doi cua, do cua
va tong » va thong, va tuong, va trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((moc cua) OR (doc cua)) tinh - canh trinh va tong cong san than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((moc cua) OR (doc cua)) tinh - canh trinh va tong cong san than cap".
• Adding a wildcard symbol may retrieve word variants: ((moc cua) OR (doc cua)) tinh - canh trinh va tong cong san than cap*.