Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach thi » sach thu, sach tai, sach thieu
thi cong » tai cong, thien cong
va doanh » van doanh, vay doanh, va danh
doanh va » doan va, doanh tai, doanh cua
cong xa » cong xay, cong xua, cong ha
van cam » van lam, van cau, van dam
cua tre » cuu tre, cua triet, dua tren
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach thi cong xa hoi. thien ((van cam) or (van nam)) xuc va doanh va ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach thi cong xa hoi. thien ((van cam) OR (van nam)) xuc va doanh va ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuat sach thi cong xa hoi. thien ((van cam) or (van nam)) xuc va doanh va ((cua tre) or (cua te))*.