Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
van dinh » van minh, van dich, va dinh
cham xuc » cam xuc, chat xuc, cham soc
qua cham » qua hai, qua cac, va cham
hoa hoi » khoa hoi, hoa hoc, hoa doi
sach ly » sach y, sach lo, sach ty
va hanh » van hanh, va thanh, va danh
ly cong » li cong, ky cong, le cong
ha hoi » ha noi, xa hoi, va hoi
di cua » dai cua, doi cua, de cua
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: doc sach ly cong ((ha hoi) OR (hoa hoi)). hieu qua cham xuc ((va hanh) or (van dinh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ly cong ((ha hoi) OR (hoa hoi)). hieu qua cham xuc ((va hanh) OR (van dinh)) di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ly cong ((ha hoi) OR (hoa hoi)). hieu qua cham xuc ((va hanh) or (van dinh)) di cua te*".