Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
thanh cac » thanh bac, thanh ca, tranh cac
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
cong van » cong vang, cong san, song van
than cap » khan cap, thanh lap, than cua
hanh cac » hang cac, hanh cat, nhanh cay

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - canh trinh va thong cong van ((than cap) or (((thanh cac) OR (hanh cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - canh trinh va thong cong van ((than cap) OR (((thanh cac) OR (hanh cac)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - canh trinh va thong cong van ((than cap) or (((thanh cac) OR (hanh cac))))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh trinh va thong cong van ((than cap) or (((thanh cac) OR (hanh cac))))*.