Perhaps you should try some spelling variations:
tru nang » tra nang, tri nang, truc nano
cham duc » pham duc, cham soc, pham duy
ve triet » va trien, su triet
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hien tu » khien tu, dien tu
tu cham » toc cham, thi cham
va danh » va dinh, va dan, va hanh
danh de » hanh de, dan de, dang de

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) OR (su sach)) tru nang xa hoi. hien tu cham duc va danh de ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) tru nang xa hoi. hien tu cham duc va danh de ve triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) tru nang xa hoi. hien tu cham duc va danh de ve triet*.