Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh bat » doanh bat, anh bai, dinh ba
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
thu xec » thu xac
bat cua » ban cua, mat cua, bai cua
he nam » ha nam, nghe nam

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) OR (so sach)) ky nang ma hoa. hieu he nam ((thu xe) or (thu xec)) danh bat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang ma hoa. hieu he nam ((thu xe) OR (thu xec)) danh bat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang ma hoa. hieu he nam ((thu xe) or (thu xec)) danh bat cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky nang ma hoa. hieu he nam ((thu xe) or (thu xec)) danh bat cua triet*.