Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
pham duy » pham duc
duy xanh » duy anh, duy ranh, duy khanh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
lai cam » lai nam, lai tam, lai chau
lai ca » lai cua, loai ca, bai ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang x ho. hieu va pham duy xanh hanh ((lai ca) OR (lai cam)) viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x ho. hieu va pham duy xanh hanh ((lai ca) OR (lai cam)) viet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang x ho. hieu va pham duy xanh hanh ((lai ca) OR (lai cam)) viet*.