Perhaps you should try some spelling variations:
pham duy » pham duc
thai cua » than cua, tai cuc, tri cua
qua pham » quan pham, quy pham, qua cham
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
te sac » te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te sach)) ky lang xa hoi. hieu qua pham duy ((va danh) or (va hanh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te sach)) ky lang xa hoi. hieu qua pham duy ((va danh) OR (va hanh)) thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te sach)) ky lang xa hoi. hieu qua pham duy ((va danh) or (va hanh)) thai cua tre*.