Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
tan hanh » tang hanh, toan hanh, tran hanh
va trien » va truyen, va thiet, va tuyen
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ve phan » ke phan, ve phat, vi phan
va phan » van phan, va phat, va phap
y lang » o lang, _ lang, tay lang
mau va » mau van, dau va, lau va

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 y lang xa hoi. hieu ((ve phan) or (va phan)) duc ((tan hanh) OR (tan thanh)) mau va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang xa hoi. hieu ((ve phan) OR (va phan)) duc ((tan hanh) OR (tan thanh)) mau va trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y lang xa hoi. hieu ((ve phan) or (va phan)) duc ((tan hanh) OR (tan thanh)) mau va trien".
• Adding a wildcard symbol may retrieve word variants: tu sach y lang xa hoi. hieu ((ve phan) or (va phan)) duc ((tan hanh) OR (tan thanh)) mau va trien*.