Perhaps you should try some spelling variations:
bach khoa » anh khoa
sach kho » sach dao, sach nha, sach kem
hieu que » hieu qua, hieu quy, hieu quan
que phat » quy phat, cuu phat, su phat
phat doc » chat doc, phap doc, thuat doc
tang xa » trang xa, tang ma, lang xa
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
su viet » so viet
doc va » duoc va, hoc va, duc va
ve su » va su

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 kho) or (bach khoa)) tang xa hoi. hieu que phat doc va hanh ve su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach kho) OR (bach khoa)) tang xa hoi. hieu que phat doc va hanh ve su viet.
• Adding a wildcard symbol may retrieve word variants: thuat ((sach kho) or (bach khoa)) tang xa hoi. hieu que phat doc va hanh ve su viet*.