Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
duc phan » dung phan, duc thang, duc phung
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
lai cua » dai cua, hai cua, lai chau
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thu nang xa hoi. hieu ve cam ((duc phan) or (duc tan)) hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu nang xa hoi. hieu ve cam ((duc phan) OR (duc tan)) hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach thu nang xa hoi. hieu ve cam ((duc phan) or (duc tan)) hanh lai cua triet*.