Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
nang mai » nang ma, nang tai, lang mai
hanh tai » hang tai, han tai, hinh tai
tu cach » tu cac
mai hoi » mai khoi, dai hoi, lai hoi
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky nang mai hoi. hieu va nam thu xe ((hanh tai) OR (thanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang mai hoi. hieu va nam thu xe ((hanh tai) OR (thanh tai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang mai hoi. hieu va nam thu xe ((hanh tai) OR (thanh tai)) cua triet*".