Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
dan lai » dan loai, dan lat, dan li
dan lap » phan lap, dan luan
cua tre » cua te, cuu tre, cua triet

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 xa hoi. hieu va pham duc va ((dan lai) or (dan lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu va pham duc va ((dan lai) OR (dan lap)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu va pham duc va ((dan lai) or (dan lap)) cua tre*.