Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
cua triet » cua viet, su triet, va triet
dua tren » dung tren
hanh vai » hanh vi, hanh va, hanh tai
ve cham » va cham, ve chat, vu cham
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cac » va cac, vien cac

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 ty nang xa hoi. hieu ((ve cac) or (ve cham)) suc manh hanh vai ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ((ve cac) OR (ve cham)) suc manh hanh vai ((dua tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((ve cac) or (ve cham)) suc manh hanh vai ((dua tren) or (cua triet))*.