Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
tinh dai » trinh dai, tinh da, tinh hai
cau theo » cau tao
lang xa » lang ha, dang xay, lang van
long ha » dong ha, cong ha, dong hoa
qua cam » qua cham, qua cac, qua ca
va tinh » may tinh
xuc va » duc va, tuc va, luc va

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