Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thi cong » tai cong, thien cong
tra nang » thi nang, kha nang, da nang
hanh de » hanh ve, hanh kem
danh di » danh du, xanh di, danh dien
cam cua » ca cua, nam cua, cau cua
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao

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 ((thi cong) or (tra nang)) xa hoi. hieu va cam cua ban ((danh di) or (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thi cong) OR (tra nang)) xa hoi. hieu va cam cua ban ((danh di) OR (hanh de)) cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((thi cong) or (tra nang)) xa hoi. hieu va cam cua ban ((danh di) or (hanh de)) cua triet*.