Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
lam chet » lam chat, la chet, lam chu
va hanh » van hanh, va thanh, va danh
xa hanh » xa thanh, xa khanh, da hanh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ma hoi. thien ((van chat) or (cao chat)) tuc ((xa hanh) OR (va hanh)) lam chet triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. thien ((van chat) OR (cao chat)) tuc ((xa hanh) OR (va hanh)) lam chet triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. thien ((van chat) or (cao chat)) tuc ((xa hanh) OR (va hanh)) lam chet triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. thien ((van chat) or (cao chat)) tuc ((xa hanh) OR (va hanh)) lam chet triet*.