Perhaps you should try some spelling variations:
xa thanh » va thanh, ta thanh, gia thanh
ha thanh » va thanh, pham thanh, phan thanh
su triet » su viet, su tien, ve triet
su sach » so sach
vu sach » vu bach, vu khach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac

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 (vu sach)) y nang ma hoa. hieu ve cac tuc ((xa thanh) OR (ha thanh)) lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang ma hoa. hieu ve cac tuc ((xa thanh) OR (ha thanh)) lai su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) y nang ma hoa. hieu ve cac tuc ((xa thanh) OR (ha thanh)) lai su triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang ma hoa. hieu ve cac tuc ((xa thanh) OR (ha thanh)) lai su triet*.