Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham luu » tam luu, thanh luu, phap luu
cham cuu » cap cuu, chat cua
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu va » lieu va, hieu qua
tai cua » thai cua, tai cuc, tri cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ((ky lang) OR (ky tang)) xa hoi. hieu va ((tham luu) or (cham cuu)) ban hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((ky lang) OR (ky tang)) xa hoi. hieu va ((tham luu) OR (cham cuu)) ban hanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ((ky lang) OR (ky tang)) xa hoi. hieu va ((tham luu) or (cham cuu)) ban hanh tai cua triet*".