Perhaps you should try some spelling variations:
cong tham » chong tham, cong thai, hong tham
thu sach » tu sach, thuat sach, thuoc sach
thi cong » tai cong, thien cong
lam chau » lai chau, lam chu, lam chat
dinh lam » dinh van, tinh lao
chau tre » chay tren, chau tho, cho tre
cho hoc » co hoc, khoa hoc
sach ky » sac ky, sach y, sach ty
cao hoc » co hoc, chat hoc
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((cao hoc) OR (cho hoc)). thi cong tham ((xuc va) or (tuc va)) dinh lam chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((cao hoc) OR (cho hoc)). thi cong tham ((xuc va) OR (tuc va)) dinh lam chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang ((cao hoc) OR (cho hoc)). thi cong tham ((xuc va) or (tuc va)) dinh lam chau tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((cao hoc) OR (cho hoc)). thi cong tham ((xuc va) or (tuc va)) dinh lam chau tre*.