Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh tra » thanh toan, thanh hoa
tu sach » thu sach, te sach, tu cach
dao tuc » dao duc
tra cua » trau cua, trua cua, tra cuu
su sach » so sach, vu sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ca » hieu cac, hieu cua, hieu xa
hieu va » lieu va, hieu qua
tuc ban » thuc ban, truc ban, tu ban
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky lang xa hoi. ((hieu ca) or (hieu va)) dao tuc ban thanh tra cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky lang xa hoi. ((hieu ca) OR (hieu va)) dao tuc ban thanh tra cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky lang xa hoi. ((hieu ca) or (hieu va)) dao tuc ban thanh tra cua tu*.