Perhaps you should try some spelling variations:
cong tham » chong tham, cong thai, hong tham
thi cong » tai cong, thien cong
danh lai » danh sai, gianh lai, dinh lam
thu sach » thuat sach, thuoc sach, thu hoach
chau tre » chay tren, chau tho, cho tre
cao hoc » co hoc, cho hoc, chat hoc
tu sach » su sach, te sach, tu cach
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) OR (tu sach)) ky nang cao hoc. thi cong tham ((xuc va) or (tuc va)) danh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang cao hoc. thi cong tham ((xuc va) OR (tuc va)) danh lai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky nang cao hoc. thi cong tham ((xuc va) or (tuc va)) danh lai chau tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ky nang cao hoc. thi cong tham ((xuc va) or (tuc va)) danh lai chau tre*.