Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua dieu
phan lap » phan dau
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
thi van » thi hanh, thi nang
thi lan » thi hanh, thi nang, thi lien
va phan » van phan, va phat, va phap

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. ((thi van) OR (thi lan)) bac duc va phan lap ((cua viet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((thi van) OR (thi lan)) bac duc va phan lap ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((thi van) OR (thi lan)) bac duc va phan lap ((cua viet) or (cua vat))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((thi van) OR (thi lan)) bac duc va phan lap ((cua viet) or (cua vat))*.