Perhaps you should try some spelling variations:
nang phat » nang suat, van phat
phat hoa » phan hoa, chat hoa, pham hoa
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
va tinh » may tinh
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
ly nang » ky nang, ly hang, ly vang
va cam » va cham, va cac, va cao
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly nang phat hoa. hieu va cam tuc ((va hanh) or (va tinh)) ((vi su) or (ky su)) tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang phat hoa. hieu va cam tuc ((va hanh) OR (va tinh)) ((vi su) OR (ky su)) tien.
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang phat hoa. hieu va cam tuc ((va hanh) or (va tinh)) ((vi su) or (ky su)) tien*.