Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
nhan luc » nang luc
thu sach » tu sach, thuat sach, thuoc sach
lang xa » lang ha, dang xay, lang van
su sach » so sach, vu sach
luc van » luoc van, luu van, duc van
hieu va » hieu qua
o lang » hoa lang, hoi lang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) o lang xa hoi. ((hieu va) or (lieu va)) nhan luc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) o lang xa hoi. ((hieu va) OR (lieu va)) nhan luc van hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) o lang xa hoi. ((hieu va) or (lieu va)) nhan luc van hanh vi cua triet*.