Perhaps you should try some spelling variations:
phuong doi » huong doi, phuong dong, phuong doan
va phuong » va thuong, cac phuong
sach ly » sach y, sach ty, sach hay
sach lo » sach dao, sach doi, sach hoi
hieu ve » hieu va, hieu van
cam loc » cam lo
doi qua » doi cua, hoi qua, doi quy
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ly) OR (sach lo)) nang ((xa hoi) OR (x ho)). hieu ve cam loc va phuong doi qua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) OR (sach lo)) nang ((xa hoi) or (x ho)). hieu ve cam loc va phuong doi qua su~".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) OR (sach lo)) nang ((xa hoi) or (x ho)). hieu ve cam loc va phuong doi qua su*.