Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
va trinh » van trinh, lap trinh, qua trinh
cau theo » cau thi, cau tao
long ha » dong ha, cong ha, dong hoa
qua cam » qua cham, qua cac, qua ca
va tinh » may tinh
dai cau » dat cau, da cau, dai hau

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 y ((lang ha) or (long ha)) hoi. hieu qua cam xuc ((va trinh) OR (va tinh)) dai cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y ((lang ha) OR (long ha)) hoi. hieu qua cam xuc ((va trinh) OR (va tinh)) dai cau theo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y ((lang ha) or (long ha)) hoi. hieu qua cam xuc ((va trinh) OR (va tinh)) dai cau theo".
• Adding a wildcard symbol may retrieve word variants: thuat sach y ((lang ha) or (long ha)) hoi. hieu qua cam xuc ((va trinh) OR (va tinh)) dai cau theo*.