Perhaps you should try some spelling variations:
co trach » bo trach, co tranh, co tich
suu viet » sau viet, sieu viet, so viet
hanh dao » lanh dao, thanh dat, thanh dam
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
te sach » toc sach
co truc » co thuc, cau truc, hoc truc
hieu va » lieu va, hieu qua
danh xa » danh ca, dinh xa, canh xa
ky danh » ky anh, ky dang
su viet » so viet

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky danh xa hoi. hieu va ((co truc) or (co trach)) va hanh dao ((suu viet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky danh xa hoi. hieu va ((co truc) OR (co trach)) va hanh dao ((suu viet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky danh xa hoi. hieu va ((co truc) or (co trach)) va hanh dao ((suu viet) or (su viet))*.