Perhaps you should try some spelling variations:
thanh tra » thanh toan, thanh hoa
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
ky lang » ky dang, ky tang, tay lang
qua dao » lua dao, qua da, cua dao
tra cua » trau cua, trua cua, tra cuu
dao xu » dai xu, dao du, dao vu
cua tu » cua tuc, cua su, cua cu
xu va » xu van, tu va, su va

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) OR (ky nang)) xa hoi. hieu qua dao xu va thanh tra cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ((ky lang) OR (ky nang)) xa hoi. hieu qua dao xu va thanh tra cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ((ky lang) OR (ky nang)) xa hoi. hieu qua dao xu va thanh tra cua tu*".