Perhaps you should try some spelling variations:
thanh cham » thanh pham, thanh cha, hanh cham
cua viet » ca viet, hoa viet, cua vat
cham cua » chat cua, cham cuu, ham cua
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach y, sach tu, sach thu
cam luc » cau luc
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va
ty nang » ky nang, ty xang, ty hang

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 ty nang ma hoa. ((hieu va) OR (hieu qua)) ((cam luc) or (cam xuc)) va thanh cham cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoa. ((hieu va) OR (hieu qua)) ((cam luc) OR (cam xuc)) va thanh cham cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ma hoa. ((hieu va) OR (hieu qua)) ((cam luc) or (cam xuc)) va thanh cham cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoa. ((hieu va) OR (hieu qua)) ((cam luc) or (cam xuc)) va thanh cham cua viet*.